And He said, “Do not lay your hand on the lad, or do anything to him; for now I know that you fear God, since you have not withheld your son, your only son, from Me.”
The Hebrew word picture for withheld is: inner room threshing (what we might call soul searching).
In order to be willing to offer up Isaac (the child of God's promise) Abraham had to experience some "inner room threshing".
If we are to discern between God's good (decree/statute) and inferior good (our desire for lifestyle) we must be willing to submit to "inner room threshing". It is here that the nourishing grain of God's good is separated from the chaff of our inferior good.