faith, god's promises
20Abraham never wavered in believing God’s promise.
In fact, his faith grew stronger, and in this he brought glory to God.
21 He was fully convinced that God is able to do whatever he promises.
22 And because of Abraham’s faith, God counted him as righteous.
He didn't tiptoe around God's promise asking cautiously skeptical questions. He plunged into the promise and came up strong, ready for God, sure that God would make good on what he had said.