Did God not know Abraham's level of faith?

What do you think of the Abraham story? Would a good all-powerful God really command something like this? Why would God need to test Abraham’s faith?
Wouldn’t God already know if Abraham had enough faith or not?

It is not the first time my attention has been turned to the historical account of Abraham and my thoughts on him turn to deeper waters. To have all that Abram had and yet be obedient to God calling him out to the desert wasteland; to even hear Him calling from all the other influences in his life – family, wealth, etc.

To many people we consider ourselves the offspring of him who is our father in the sight of God in whom he believed —the God who gives life to the dead and calls things that are not as though they were. (Rom. 4). He is the great example of faith. Yet, as great of an example of faith that Abraham is, he is only justified through faith in the one in whom he and we believe…not because we are so powerful in our faith. In other words, the credit is not as powerful as the creditor who gives it. “This is why "it was credited to him as righteousness." The words "it was credited to him" were written not for him alone, but also for us, to whom God will credit righteousness—for us who believe in him who raised Jesus our Lord from the dead. He was delivered over to death for our sins and was raised to life for our justification.” (Rom 4:22-25).

This is why I don’t follow some of Kiekegaard’s thinking that it was good that Abraham had such great timing (not “seeing the ram” before laying a hand on his son to sacrifice) and other considerations. As for asking if an all-powerful God would command such, it begs a prior question of what relevance does omnipotence have with asking for obedience? Does God’s omnipotence negate his desire for a relationship with His creation? Is being all-powerful mean creation can freely impugn His sovereignity? These related questions get to the heart of the matter: the nature of God in how the Creator is revealed to us. We assume that God needs to test Abraham’s faith; why would not God be revealing himself to humanity by how he tests one of his children in a prophetic way to proclaim how he will redeem his creation? And if God was doing such to prophesy the way of his redemption to come, would that negate whether God considers if Abraham had enough faith or not?

Where in the whole Bible is someone outside of Jesus of Nazareth been perfect in faith and action? To think that God may have needed to test Abraham to see the “level” of His faith reveals a presupposition by the one asking the question that either God is not all-knowing or that there is a works-based faith that can save even Abraham. If in fact, Abraham was justified by works, he had something to boast about—but not before God. (Rom. 4:2) Therefore, it was most likely a demonstration of love by God to show that He intended not for us to pay for our sins, but that He would send the Word of Life to be the perfect sacrifice for our scarlet transgressions.