Cary Cox, from Genesis 21:1-12. After 25 years of waiting, Isaac was born! God is faithful, and he will do what he promises. But in God’s choice of Isaac over Ishmael, we learn that God will do things his way, not ours. He will accept no help from us in his plan of redemption. We must approach him to be saved, and to live each day, by faith in his promise, not according to our flesh, our strength, or our way.