21
and
abeing fully assured that
bwhat God had promised, He was able also to perform.
b
Genesis 18:14, Hebrews 11:19
Genesis 18
14
"aIs anything too difficult for the Lord? At the bappointed time I will return to you, at this time next year, and Sarah will have a son."
Hebrews 11
19
He considered that aGod is able to raise people even from the dead, from which he also received him back as a btype.
Other references for Romans 4:21