Abraham was prepared to sacrifice Isaac - "You did not refuse to give Me your son, your only son" (Genesis 22:12). God did give His only Son for us - "God did not spare His only Son but handed Him over to death for us all" (Romans 8:32). While there may be comparisons made between the sacrifice of Isaac and the sacrifice of Jesus, we must emphasize the great difference - the sacrifice of Isaac did not happen, the sacrifice of Jesus did. For Isaac, there was a way out. For Jesus, there was no other way. Abraham's faith was proved genuine without the sacrifice of Isaac. Our faith only becomes a reality through the sacrifice of Christ (Galatians 2:20-21; Galatians 3:13-14).