¹⁹ Abraham was about 100 years old. His body was already so old that it was nearly dead. His wife, Sarah, was unable to have children. Abraham understood all that, but he did not stop trusting God. ²⁰ He never stopped believing what God had promised. Instead, he believed in God more strongly. He trusted God's great power. ²¹ Abraham was sure that God was able to do what he had promised to do.