ultimate sacrifice

Hebrews 11:17-19

I am struck by Abraham's faith. Abraham trusted God enough to obey him even when it didn't make logical sense: God told him that through Isaac the promise would be fulfilled and now God asks Abraham to sacrifice Isaac. As cruel as this sounds, it is consistent with the rest of the OT: the firstborn belongs to God because the firstborn represents the whole family and the family is sinful. The wages of sin is death and so the firstborn must die. However, God in his grace provided a ransom that could be paid to redeem the life of the firstborn. Abraham has faith, before this ransom was instituted, that God would provide a substitute for his son or that God would raise Isaac from the dead in order to fulfill his promise to Abraham.
This is really about worship. The danger for Abraham was that Isaac would become the promise rather than the one through whom the promise was fulfilled. Isaac points to Jesus who is the ultimate. Isaac is not. But the danger is that Isaac would become ultimate for Abraham; that Isaac would become the object of Abraham's ultimate attention, affection and worship. God is reminding Abraham that God is the ultimate.
I wonder what I am making ultimate in my life. Maybe the blessings of God are taking the place of the person of God. Maybe ideals and things of this world are taking the place of God. I know my reputation and the praise of people is always a threat to take over the ultimate spot in my life. I wonder what I love too much. I wonder what God might be calling me to sacrifice so that God can have the glory, attention and affection that I owe him. I can't think of much beyond my reputation and the praise of people.
I wonder how I would respond if God asked me to do something that did not make any sense from a human perspective. I wonder if God has asked me to do something like this (not literally kill my son, obviously, but give something up or do something that doesn't make sense humanly) but I have dismissed it as something that didn't make sense. I pray that God would give me great sensitivity to know what is threatening to take the place of God in my life and to know what is his voice and command even when it doesn't make sense.