Romans 4:20-22 (ESV)

20 No unbelief made him waver concerning the promise of God, but he grew strong in his faith as he gave glory to God, 21 fully convinced that God was able to do what he had promised. 22 That is why his faith was “counted to him as righteousness.”

The person that the Apostle Paul is describing here is Abraham.  This scenario was one where Abraham was rationalizing sacrificing his one and only son at the age of almost 100, all because God asked Him to.

Why would God ask Abraham to sacrifice the son that He promised would grow up and produce a lineage that would bless the whole world?  It sounds like God is either contradicting Himself or like He has lost His mind.  Neither are true.

Here we see why an angel had to come and stop the hand of Abraham from killing his son.  He was most definitely going to do it.  His reason.  He trusted in God that much.  If God promised that Isaac would be the one to carry out His promises to me, then I believe He could bring him back from the dead.  In essence, Abraham’s thinking went like this.  “If God said He is going to do it, I believe Him.  Even if I don’t understand how He is going to do it.”

That is faith.  Notice that this radical faith is all that was required for him to be considered righteous.

Application:

You and I must display this same kind of faith.  You might not know how God is going to change you and your circumstances, but you mustn’t doubt that He will.  If He promised to do it, He’ll do it, regardless if you understand how He is going to do it.  We can have this kind miracle seeking faith because our Heavenly Father actually did sacrifice His one and only Son, Jesus, who DID come back to life to offer us new life today through faith!