"He who would not forgive must judge, to justify his failure to forgive."
A Course in Miracles tells us that as soon as we cease to be forgiving, we enter into an unforgiving state where judgement is automatic. Judgement is attack. It is condemnation. It is required and necessary in order to implement separation, to come between You and God.
Typically we think of judgement as something you believe about others. But this is always an illusion. Judgement is always from you, towards yourself, happening within your own mind.
Judgement also does not judge something which is separate from you and outside of you, but it seems to make a part of yourself separate from the rest of you and outside of what remains of you. It establishes part of yourself as "other" and "not me", and attacks it.
Judgement is sin. It is an attempt to attack the Truth and split the mind. It also possesses two parts, one being the vantage point of "the judger" and the other being the vantage point of "the judged". It is not possible for a mind to be only a judger and not the judged. It must be both, because that same mind must believe that being judged is possible and real to it.
The mind entering into judgement is entering into separation. The mind becomes separated within itself. It forms a victimizer and a victim simultaneously. It engenders an attitude of superiority and inferiority simultaneously. It is not possible to therefore hold an "inferiority complex" without also possessing a "superiority complex".
To believe you are inferior can only come about by part of the mind skewing itself away from what appears to be superiority or worthiness or innocence, which is required in order for the other part of the mind to skew towards judgement.
Thus the mind splits into two simultaneous attitudes, victimization and victimhood, or judgementalism and being judged. You cannot judge without being judged, and all judgement is a judgement of yourself, not another. The mind thus simultaneously manufactures an experience of being judged, and an experience of judging, and then pretends not to be doing so.
It becomes easy for a judging mind to enter into denial that it is playing both roles, because it will either side with the position of judger or judged and deny that the other role exists within the same mind, in order TO judge or be judged. A sense of separation is needed between these two "false identities" to establish that one is what it is and the other is different.
The conscious part of the mind will likely see itself either as judged or as judging. When it sees itself as judged, it will see its judger as separate from itself and likely projected outward. It will be afraid of judgement coming from "other" than itself, which is thought to be other people. It will literally use other people to judge itself, even if they are not actively judging, trying to explain how "not myself" is the cause of this.
Alternatively, the mind can focus conscious awareness on the active role of judger, in which the role of being judged is more unconscious. It sees itself as judging only, and that which is judged is separate from itself and "other". It therefore sees judgement as being against others outside of itself, such as other people, even if other people are innocent. It believes it is not judging a part of itself, having split off the target of its judgements from awareness, through disassociation.
Both of these roles coexist within the same mind, as a split personality with two identities. There is an identity of a judger, superior and righteous and condemning. This is more clearly aligned with the act of sin, whereby to judge is to affirm that sin is real, that judgement is justified because of sin, and that it is someone else who has sinned.
Yet this condemnation is itself sin occurring in the mind, because sin is an attack just as is judgment. The attacking, judging part of the mind believes it is free from the effects of its own attack, having projected them onto another part of the mind.
Then there is the second identity of the judged, the victim who has been attacked from without, and the part of mind that sees itself as powerless, unjustified, weak, vulnerable and open to attack.
It sees itself being attacked against its will and having no power to judge at all. Seeing itself as unworthy, it disclaims having its own opinion or any sense of passing judgement upon others, and acts like a helpless victim. It is the receiver of judgement, open to feeling hurt and embarrassed and ashamed by the accusations which seem to come from beyond itself, typically projected onto other people as the cause because it doesn't recognize that the cause is within the same mind it exists within.
Both of these identities are happening within your own mind, and the interplay between them is happening entirely within you. The judging "you" and the judged "you" are both fictional, illusory identities. Neither of them are true of who you really are - a whole mind with no separation. Neither of them are your real identity, given that who you really are is wholeness and innocence and is completely free from attack, given or received.
You which are the HOST MIND to these two artificial portions of ego mind must gain enough awareness to recognize that you are judging yourself AND being judged by yourself, you are the one who stands in condemnation over yourself, it is you who is the source of your victimization, and "others" have absolutely nothing to do with this.
The only reason you believe that others i.e. other people are judging you, or are the target of your judgement, is because both the judger and the judged parts of your ego mind are unaware that they exist within a larger mind which hosts both of them. Both believe they are all of your "self" and that there is nothing more to your identity than the limits or confines of each false idea of identity.
Being incapable of seeing beyond themselves, both the judger and the judged thus see the "other" which is playing a part in causing or receiving judgement, as being "not myself" and therefore must seem to be "other people". It's easy to conclude this given that other people showing up separate bodies are readily available to "project" this onto, or to see them as sharing the same location as the "otherness" which is believed to be the problem. But this all has nothing to do with other people at all.
Whether it be others in the form of distinctly separate external people, or others in the form of the other part of your own mind, it is only the separation between these identities and the fictional story about how they see each other which is maintaining the split and projecting of the cause.
Your whole mind needs to recognize that it is bigger than and containing these two false selves, that neither self is the whole truth because its story is limited and partial, that YOU as the whole mind are choosing and playing these two identities against each other, and own up to the fact that since they are both WITHIN you, they must both BE a part of your one identity.
In order to return to a single identity, their separateness and distinctness must be dissolved and seen as an illusion. For both of these illusory selves to be a part of you, neither of them can be the whole truth. And in this light, the distinctiveness between them is overlooked and dissolved. Thus do they disappear and judgement and suffering ends. You must admit that you have been playing both roles, and therefore YOU are the one identity behind the ILLUSION of two selves.
Similarly, you must realize that all of your victimization, all of the ways that you believe others are doing things to you, all of the ways that you seem so suffer because of causes separate from you etc.. these must all be recognized as being because of another part of YOU, which is perhaps hidden behind denial and unconsciousness, attacking this second part of you. You've come to identify with this one split-off part of your mind, and are in denial of the rest of you.
It is you who has judged yourself, because it is you who have believed in sin and used sin to split your mind into multiple personalities. You are both the judger and the judged, and yet you are neither because they are both ego illusions.
It is no more true that you actually are being victimized by anyone else, than it is true that you are a victimizer of someone not yourself. You must realize that BOTH of these roles are not your true self, your real identity, or the whole of who you are. They are but an illusion of a separated, split ego mind, pretending to be an identities which you made up.
You are the one who has attacked you. You are the one who is attacking you. You are attacker and attacked, victim and victimizer. And yet you are neither of these, ultimately, because they are both fictional. The ego is always attacking itself and nothing else. The ego IS your self-attack, the scene in which a victimizer and a victim both play roles and cooperate to build a fictional story of interaction.
This is all taking place within you and has nothing to do with other people. It's only because of the split in your mind and your sense of there being a self that is "other" than your self, that you then become confused and accidentally project that sense of otherness onto other separate bodies. Really the otherness your are relating to as your enemy is just a part of your own mind, and your judgement of "them" is directly an attack on yourself, appearing to be indirect, or not at all.
To judge is to attack yourself. To believe you judge another not yourself is the very denial which makes judgement seem possible. You will judge yourself if you judge, and you will never judge another person. And if you are judged, rest assured you are not judged by another, nor should you fear the judgement of other than yourself. It is really your OWN "other self" which you are afraid of judging you, because YOU are the one who is judging you from within.
Surrender both of these positions, therefore, and return to wholeness, which is a mind of forgiveness. In wholeness you will not see an other to judge or to be judged by. Forgiveness cancels judgementalism and the belief in victims and victimizers. You have but done this all to yourself and have experienced all sides of your self conflict. Self conflict always contains two selves, who believe they each are all of your self and yet is limited in its self concept.
You cannot judge without being judged. You cannot be judged without judging. Both make up the state of sin, which is a belief that you should be condemned, or are being condemned. All of it is your own doing.
Judgment of another is a position of causality, in which you are squarely within the identity of the one who is doing something to another. Being judged then is a state of being at the effect of the judgement of another. Yet by entering into the drama of judgement, you become both the cause and the effect of it. And yet, you are not really the cause because none of it has been real. There are no real consequences from separation.
Following from the judging causality of sin, there is the result of guilt, which sees itself as the effect of sin. Yet from the perspective of guilt, as the victim of sin, the mind sees itself as separate from the sinner, and therefore sin is made unconscious and the guilty mind now sees itself as causal. It then proceeds to stand in the role of cause, continuing judgement against the self, determining that because it is guilty, it must be punished, and punishment is just another step on the road of judgement.
Judgement leads all the way to death in this manner, since condemnation calls for death to atone for what you claim you did. You will both suffer and want to suffer, will die and want to die, and will be victimized and want to be victimized. This is what comes from judgement - the entire ego thought system of sin, guilt, fear, punishment and death.
Learning not to judge is only important in terms of learning not to believe in real sin, and to place your mind back into a state of forgiveness. Of yourself. Wholeness, which is the end of judgement, cancels its illusory effects and they are undone.
It is not helpful to simply stop projecting judgements onto other people, if you are not recognizing that it was you that you were judging all along. That would only mean you continue to judge yourself but now are constipated with a censorship of the judgement that continues internally, trying not to shift it onto others but still believing you deserve it. Ceasing to project onto others is only the first step.
You must realize that you've been attacking yourself, judging yourself, being judged by yourself, and that you need to stop doing this. That you are willing to stop doing this. Generally speaking, an awareness that you have been doing this at all may be enough to shine enough light into your mind to make sense of what you have been experiencing, and to dismantle the ego's construct of self attack completely.
You need but a little awareness that it is you who has been both attacker and attacked, and that if you are both of these, then you must have a single identity, and therefore the illusion of separateness between them must be false and unreal. And thus, as an illusion recognized as an illusion of separateness, it will disappear. The mind is thus healed and restored to wholeness, awareness of wholeness returned, and along with it your FULL identity is restored to awareness.