What does Romans 4:19 mean?
Paul is describing Abraham's amazing faith in God. He believed and kept believing that God would keep His promise to give him and Sarah a son. Abraham maintained this faith even as it became more and more unlikely according to human experience. In fact, from a human standpoint, God's promise was impossible! Abraham was 100 years old, and his body was "as good as dead," Paul writes. Not only was Abraham's body far beyond the normal years of fatherhood, he was already beyond the average lifespan of a man (Psalm 90:10)! Sarah was 90 and had been barren her entire life.Still, Paul says that Abraham's faith in God did not even weaken. He was always convinced that God would keep His word. We become Abraham's spiritual children when we believe in God to keep His promises to us, as well. Paul's point in using this example has been to show that faith, not good works, is what allows us to be called righteous before God.