Romans 4:3
3 For what does the Scripture say? “Abraham believed God, and it was counted to him as righteousness.”
Romans 4:6
6 just as David also speaks of the blessing on the man to whom God counts righteousness apart from works:
Romans 4:16 - 4:17
16 For this reason it is by faith, in order that it may be according to grace, so that the promise will be guaranteed to all the seed, not only to those who are of the Law, but also to those who are of the faith of Abraham, who is the father of us all— 17 as it is written, “A father of many nations have I made you”—in the presence of Him whom he believed, even God, who gives life to the dead and calls into being that which does not exist.
Romans 4:23 - 4:24
23 Now not for his sake only was it written that it was counted to him, 24 but for our sake also, to whom it will be counted, as those who believe upon Him who raised Jesus our Lord from the dead,