Verse 21. And being fully persuaded. Thoroughly or entirely convinced, Lu 1:1; Ro 14:5; 2 Ti 4:5,17.

He was able. Comp. Ge 18:14. This was not the only time in which Abraham evinced this confidence. His faith was equally implicit and strong when he was commanded to sacrifice his promised son, Heb 11:19.

{y} "also able to perform" Ge 18:14; Lu 1:37,45; Heb 11:19