God is the primary authority who has the power and is the cause of His creations. When he creates his children in Heaven he uses his authority to do so. But he also extends His authority to them, giving them their own true authority, which means they too now have the authority and power to create - to author. It is because souls have authority that they are co-creators with God. Every Son of God has authority and power because God is in them.
"Souls were given their own true authorship"
The problem came in the separation idea, where souls attempted to be the author of God. Simultaneously they attempted to deny that God is the author of them. And therefore that the author of themselves is anonymous or unknown.
This then opened up the possibility for souls to believe that they could invent their own definition of God, their own definition of truth, their own definition of who or what authored them. And so they themselves were now attempting to be the one to define their own selves, as though they had authored themselves and could determine what they are. Or to put it another way, they wanted to be God and to change, cause, or alter God, which is the idea of sin.
"You HAVE the power to ADD to the Kingdom, but NOT to add to the Creator OF the Kingdom."
By denying the author of you (God), you invented an author of yourself, by yourself, and thus found yourself in a kind of split minded state of being under the power of a made-up false God, while also attempting to BE a false God. This all hinges on the belief that you can author God, can cause God, can change reality, and therefore have power over Him. It's an attempt to establish what the truth is, to decide what it is and to use this power to redefine or deny God's truth.
"First, the assumption is implicit that what God has Created can be changed by the mind of Man.
You then form this ego viewpoint that you are God, you have power over God, you are the author of yourself, you don't need God, you don't derive from God, you are not like God (or yourself), and you can "make up" or invent whatever you think you want to be. This also then positions you as believing you are an authority, for whom there is no higher authority. Which means you are now unwilling to accept or share God's truth, mind, or will, and have "gone rogue".
By trying to be an authority over God, who is the authority over you, you enter into level confusion. You who are an effect of God, authored by God, deny this inheritance and claim to be able to cause/author God. You are now like a resistant child who doesn't want to cooperate and is digging in its heels with a superiority/inferiority complex.
This level confusion forms the root basis for the entire ego thought system, which is entirely level confused, is infused with the authority problem throughout, and leads to the making of a world in which you play God. "The world was made as a place where God could enter not", SO THAT you could be God without God in this world and try prove your authority does not come from Him.
As "children without a father" (the separation between Father and Son, Cause and Effect), we now act as if we're God in this world, a gatekeeper, a definer of truth, he through whom all things must be approved and agreed if they are to be "authorized." We attempt to define our own self, to establish our own truth, to invent worlds, to make-believe stuff into reality.
We're then busy not listening to God, not receiving, denying inheritance, rejecting guidance, wanting to be right, and are so in denial that we have trouble being willing to accept correction.
You can see this in anyone who is doing A Course in Miracles, and indeed everyone else. The attempt to be God. Nothing is authorized or approved unless it is cleared by us. Nothing is allowed to be agreed to as "the truth" unless we say so. We have to be the one to figure everything out on our own. We are unwilling to be mistaken because our reliance on our own self and abilities is too high. We depend on our belief that we are so accomplished and important and authoritative that anything challenging our self-defined truth is rejected.
This also leads to a kind of maniacal, tyrannical, domineering, resistant, stubborn, power-hungry, competitive, war-mongering, intimidating nature. These are all forms of artificial authority. They are all based on the belief in a lack of authority and insecurity. They all require a lot of reinforcement, and in the worst examples produce a desire to literally force others to comply with one's wishes. You can see this in leaders of some countries for example, in murderers, and in those who project and scapegoat and blame.
As far as A Course in Miracles is concerned, we come to it with an authority problem. We come to the truth with this egotism of self-centered "I must control", "I am right", "it's not true unless I say it is" kind of approach. And this also means initially that we will attempt to change the course to make it match what we want the truth to be.
We think we have more authority than someone who has accepted that God is their author, such as Jesus, and who has authored the Course from his position of true authority. This doesn't mean that Jesus has authority OVER us. He is an equal. He temporarily is like an older brother due to his acceptance OF authority and the reclaiming of his TRUE authority and power. But this does not mean he aims to force or dominate.
God similarly is not forceful ("God does not coerce" "even God would not go against your will"), and His authority isn't a domineering tyrannical rulership of forced control, but the ego cannot help but fear this authority. It reads into it its own authority problem and sees it as a threat, or as an attempt to have power over you. There will then ensue a power struggle for dominance, for who is right, between you and what the truth says is true.
This usually leads to a tremendous amount of attempts to redefine the meaning of the truth. New ideas which seem to threaten one's God complex will be frowned upon or treated suspiciously. We will try to change the truth and the course to fit whatever we believe is true already. We might though gradually become willing to surrender and let go of this need to have authority over true authority.
What we find in the Course is an expression from a Master who has authority and knows the truth. Ego doesn't like this. It wants to be the gatekeeper through which all things must be approved otherwise they are considered false. We have to become willing to surrender this position and becoming open to receiving a truth which may contradict our beliefs. And that means a willingness to be mistaken, not just about what we've concluded but even that we are in a position TO define what God's truth is.
Basically we're being exposed to God's truth and authorship, while believing we are the truth and authorship of ourselves. Believing we don't need God or his stupid truth. So there's going to be a tug of war on our part. There's going to be resistance. But ultimately we need to shift from trying to be the one who defines the truth, to being one who accepts HIS truth.
To do this is an act of surrender, and the development of trust. A willingness to be mistaken. An openness to BE taught. To be a student. To learn of Him. To ALLOW His truth to become the authority. To align with God's will. To surrender the ego and let go of being right. It means regarding the Course's truth as FIXED TRUTH, meaning that YOU are the one who needs to adjust to correlate to it, rather than IT being the one to change. It means TRUSTING Jesus's words. If HE says something is true, YOU need to accept it, even if that means letting go of beliefs which say the opposite. Without this trust there is no willingness to allow Jesus to be your teacher, or to accept the truth of God.
This is where you become humble. This is where you surrender the fight. This is where you are willing to let God tell you of Himself. This is where you learn to receive love. This is where you let go of controlling yourself, your life, and others. It's where you become willing to do God's will. To set aside your attempts to oppose His guidance. To hand over authority to your soul, receiving its truth from God. Where you plug your mind back into spirit and acknowledge that God is your father again. That you have no other God's. That you are open to receive your inheritance and recognize yourself as God created you.
It entails allowing God to be the one who has defined who and what you are. To recognize you cannot and have no changed yourself. That you have never sinned because you did not cause God and have no desire to do so. To realize you must still be as God defines you to be. AND this does not mean, as it does to the ego, that you have to merely begrudgingly cooperate "against your will". We have to unlearn the belief that God is trying to force us, require us, or manipulate us. We have to learn he does not have an ulterior motive or that he's trying to dominate.
We can only come to God through our own free will. It entails a willingness to accept God's truth is the only truth. That it offers you an extraordinary inheritance, freedom, power and joy. That doing God's will will make you happy. That forgiveness offers everything you want. And this all requires you to trust God and surrender your self-authoring control issues. If you suspect God of trying to force you to do something you don't want, it's because you are forcing yourself and others against their free will. We have to re-learn that God can be trusted, and that He still loves us.
Upon relinquishing false authority, or rather, an attempt to have authority without or against God, as a rebellious nature which seems to throw yourself into hell, we can resume our TRUE authority as co-creators, with the power TO create, to ADD TO the Kingdom, and to Create WITH God USING His power which He has shared with us in our own creation. We now happily and willingly resume the extension of God's spirit to increase our joy and to fulfill our function. God knows what's best for us.
A willingness to accept God's authority of us doesn't necessarily mean having to accept that you are under coercion. "God does not coerce." God has granted you free will and co-creatorship. He wants to create WITH you. Through you.
It also doesn't mean you have no power or no authority. The Sons of God have authority over all illusions. They also have authorship, shared with each other and with God, of their creations, to and through whom they extend their authority from God. God is not trying to take your power away. He's trying to give it back to you. It's just that He wants your power to the be the power HE gave you. He wants your truth to be the truth HE established in you, which is true of you. He wants you to let go of the truths you invented and to allow His truth to be your truth. In this way, you reclaim your inheritance of truth from Him.
This means that as you become more truthful, opening up to receive truth FROM Him, you put aside your OWN opinion. You let go of the truths you invented to replace his. You become a messenger of His truth, an extender and sharer. You now become authoritative in His truth, able to express it, but this truth didn't come from you. It is not OF you.
This means that while you are being authoritative, you also recognize that the truth you express is not "your own". We are not accustomed to the idea that someone's statements of truth are not necessarily THEIRS alone. That what they are saying has been inherited FROM another source, and is not their own opinion. We have to separate out the truth we share, from the messenger.
Just because you communicate this truth to others doesn't mean it is your OPINION. Having authority does not mean you are trying to be right, if it is based on truth inherited from God. When you have transitioned from being an inventor of truth, to being a relay or medium through which trust extends, you become a PART OF the Kingdom, a representative of God's authority, a way for His truth to transfer and extend to others. You have the truth, but you did not create the truth. The power of your word has the power of God in it, but you did not give it this power. As a representative of God, your truth also is His.
The light in you is what God put there. He shared His will with you in your Creation. He gave you his power. He put authority into you. He created you with His truth. And he etablished your permanence by knowing you forever. Everything you really are has been defined by Him, sustained by Him, and kept safe by Him.
You are worthy because He says you are. You are permanently at peace because He says you are. You are free to love and create because He says you are. What you are you cannot define. All you can do is accept and rejoice that He created you good and you are perfect and happy in the function He gave you. And by simply being true to yourself and natural in your expression, you are a perfect child of God, created to create the perfect.
Accepting your function is accepting God's authority. Having authorship by God does not make you a slave. You are an author, and you do have creations. But these creations were not created WITHOUT Him, or using anything not OF Him. Of yourself you are nothing, because you are not of yourself. You are not from yourself. But you DO have power, shared with Him, because He put it there. You are the medium through which this power can extend, per your free will. And when you will in accord with God's will, the power of God moves through you, with you.
"The power of God, and NOT of you, engenders miracles. The miracle ITSELF is but the witness that you HAVE the power of God in you."
"To say, "Of myself I can do nothing" is to gain all power. And yet it is but a seeming paradox. As God created you, you have all power. The image you made of yourself has none. The Holy Spirit knows the truth about you. The image you made does not. Yet, despite its obvious and complete ignorance, this image assumes it knows all things because you have given that belief to it. Such is your teaching, and the teaching of the world that was made to uphold it."
"I am forever an effect of God."
"In the Creation, God projected his Creative Ability out of Himself toward the Souls which He created, and also imbued them with the same loving wish (or will) to create."
"The Soul, because of its own likeness to its Creator, is creative. No Child of God is capable of losing this ability, because it is inherent in what he IS."
"There is nothing my holiness cannot do."
"What the Holy Spirit enables you to do is clearly not of this world." "Do His works."
"I am the model for rebirth, but rebirth itself is merely the dawning on your minds of what is already in them. God placed it there Himself, and so it is true forever."
All credit goes to God for what you are and what is in you. Without Him you are nothing. All credit goes to God AND to you and your brothers for what you express TOGETHER in co-creatorship and joint power.
Without an acknowledgement of God's power, you have none. By acknowledging it, it becomes yours. And so long as you remain plugged into His power supply, the Power of God is in you and is yours to extend with Him. Through His power, you work miracles. The power, peace, joy and love of God is your natural inheritance, and yours to pass on to the children of your will.