Genesis 17:19

19God said, “No, but aSarah your wife shall bear you a son, and you shall call his name bIsaac.
 Isaac means he laughs
I will establish my covenant with him as an everlasting covenant for his offspring after him.

Genesis 17:21

21But dI will establish my covenant with Isaac, ewhom Sarah shall bear to you at this time next year.”

Genesis 18:10

10The Lord said, “I will surely return to you fabout this time next year, and gSarah your wife shall have a son.” And Sarah was listening at the tent door behind him.

Judges 13:3

3 hAnd the angel of the Lord appeared to the woman and said to her, “Behold, you are barren and have not borne children, but you shall conceive and bear a son.

2 Kings 4:16-17

16And he said, “At this season, iabout this time next year, you shall embrace a son.” And she said, “No, my lord, jO man of God; kdo not lie to your servant.” 17But the woman conceived, and she bore a son about that time lthe following spring, as Elisha had said to her.

Luke 1:13

13But the angel said to him, “Do not be afraid, Zechariah, for myour prayer has been heard, and your wife Elizabeth will bear you a son, and nyou shall call his name John.

Luke 1:35-36

35And the angel answered her, o“The Holy Spirit will come upon you, and the power of pthe Most High will overshadow you; therefore the child to be born
Some manuscripts add of you
will be called rholy— sthe Son of God.
36And behold, your relative Elizabeth in her old age has also conceived a son, and this is the sixth month with her twho was called barren.
Copyright information for ESV