Genesis 17:21 "But My covenant I will establish with Isaac, whom Sarah will bear to you at this season next year."

Genesis 18:10 He said, "I will surely return to you at this time next year; and behold, Sarah your wife will have a son." And Sarah was listening at the tent door, which was behind him.

Jeremiah 32:17 'Ah Lord GOD! Behold, You have made the heavens and the earth by Your great power and by Your outstretched arm! Nothing is too difficult for You,

Jeremiah 32:27 "Behold, I am the LORD, the God of all flesh; is anything too difficult for Me?"

Zechariah 8:6 "Thus says the LORD of hosts, 'If it is too difficult in the sight of the remnant of this people in those days, will it also be too difficult in My sight?' declares the LORD of hosts.

Matthew 19:26 And looking at them Jesus said to them, "With people this is impossible, but with God all things are possible."

Luke 1:37 "For nothing will be impossible with God."

Romans 4:21 and being fully assured that what God had promised, He was able also to perform. (NASB ©1995)