Romans 4:1-5
What should we say then [about what] our forefather Abraham discovered?
Romans 4:16-24
For this reason, the promise [i.e., of being made right with God] comes through faith [in God], according to His unearned favor, so that it may be [given] with certainty to all of Abraham's descendants. The promise is given not only to those [who live] under the law [i.e., the Jews], but also to [all] those [who live] by faith, like Abraham. Abraham is the [spiritual] father of all of us [believers],
Galatians 3:9-14
So then, all those who have faith [in Jesus] receive a blessing along with Abraham, a man of faith.
Hebrews 11:8-12
By [having] faith, when Abraham was called [by God] to leave [his homeland] and go to a place he would later receive as an inheritance [i.e., Palestine], he obeyed God and went out, not knowing where he was going.