"When they arrived at the place where God had told him to go, Abraham built an altar and arranged the wood on it. Then he tied his son, Isaac, and laid him on the altar on top of the wood. And Abraham picked up the knife to kill his son as a sacrifice." -Genesis 22:9 & 10
I can't imagine how Abraham must have felt after God told him to sacrifice his son. I mean, what kind of God is this? God's people didn't traditionally offer up their children as sacrifices - the pagan people did that. Nevertheless, this is what Abraham was instructed to do, and he heeded the instruction.
We never see Abraham flinch as he is going up the mountain with Isaac. There is no account of him stopping along the way, crying out to God, or questioning his faith. There is no record of an emotional breakdown, a furrowed face; even a tear. But, we do know that Abraham was counted righteous because of his faith. (Romans 4:3) It only appears that he had unwavering faith that day, faith that God was good and that He would indeed provide.
Abraham, in spite of getting to the 11:59th hour, stood firm. The lamb was not provided at the base of the mountain. Nor was it provided halfway up the mountain. It was not even provided as Abraham was building the altar. No, the lamb was provided as Abraham picked up the knife. This speaks a great deal about TOTAL - not partial or limited - faith. Abraham didn't hold anything back.
Then the angel spoke. "Don't lay a hand on the boy!" the angel said. "Do not hurt him in any way, for now I know that you truly fear God. You have not withheld from me even your son, your only son." v.12
What could God do with faith like that? Do you have 100% faith?