Believe in God, you will receive eternal life.
Believe in ego, you will receive suffering and death.
You receive because you believe in it. You believe it is your truth. Your reality. And what you deserve. You receive it because you make it happen.
When you believe in God, you join with God's will and create with Him and thus receive what you create.
When you believe in ego, you join with the ego's will and create with it and thus receive what you create.
Whatever you are receiving, it reflects what you are believing in.
You can't have a belief which is disconnected from what you receive, and you can't be in a state where you believe one thing and receive something else.
If you want to receive a miracle, you need to receive God, by believing that His truth is your truth.
If you want the results of the miracle but you don't want the alignment with God that's required to receive it, to choose it, you won't receive it. That's how sickness and suffering remain.
You get to choose what to believe in.