And he believed the LORD; and the LORD reckoned it to him as righteousness.
As translated by the RSV, this verse is grammatically incorrect. Correcting the English translation to correspond to the Hebrew
וְהֶאֱמִן בַּיהוָה וַיַּחְשְׁבֶהָ לּוֹ צְדָקָה
the English should read,
Then Abram believed in the LORD and thought the truth of God’s promises to be evidence of the LORD’s righteousness.