How does God's grace relate to Abraham's faith?

God's grace is central to understanding Abraham's faith and justification. Abraham believed God’s promises without having performed works to merit such favor, illustrating that it was God’s grace that allowed him to have faith. Romans 4:16 emphasizes, 'Therefore it is of faith, that it might be by grace; to the end the promise might be sure to all the seed.' This relationship shows that God initiates the act of salvation, granting faith as a gift, so that human boasting is excluded, and all glory is given to God for the righteousness obtained through faith.