Gen 17:21, 18:10-14, 21:2-3, 6, 2Ki 4:16-17, Luk 1:13-20, Rom 9:6-9, Gal 4:28-31 | ESV | STEP | But I will establish my covenant with Isaac , whom Sarah shall bear to you at this time next year .

10 The Lord said, “I will surely return to you ^cabout this time next year, and ^dSarah your wife shall have a son.” And Sarah was listening at the tent door behind him. 11 Now ^eAbraham and Sarah were old, advanced in years. The way of women had ceased to be with Sarah. 12 ^fSo Sarah laughed to herself, saying, ^g“After I am worn out, and ^hmy lord is old, shall I have pleasure?” 13 The Lord said to Abraham, “Why did Sarah laugh and say, ‘Shall I indeed bear a child, now that I am old?’ 14 ⁱIs anything too hard ^{▼▼Or wonderful} for the Lord? ^kAt the appointed time I will return to you, about this time next year, and Sarah shall have a son.”

Genesis 21:2-3

2 And Sarah ^lconceived and bore Abraham a son in his old age ^mat the time of which God had spoken to him. 3 Abraham called the name of his son who was born to him, whom Sarah bore him, ⁿIsaac. ^{▼▼ Isaac means he laughs}

Genesis 21:6

6 And Sarah said, ^p“God has made laughter for me; everyone who hears will laugh over me.”

2 Kings 4:16-17

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

Luke 1:13-20

13 But the angel said to him, “Do not be afraid, Zechariah, for ^uyour prayer has been heard, and your wife Elizabeth will bear you a son, and ^vyou shall call his name John. 14 And you will have joy and gladness, and many will ^wrejoice at his birth, 15 for he will be ^xgreat before the Lord. And ^yhe must not drink wine or strong ^zdrink, and ^aahe will be ^abfilled with the Holy Spirit, ^aceven from his mother’s womb. 16 And he will turn many of the children of Israel to the Lord their God, 17 and ^adhe will go before him ^aein the spirit and power of Elijah, ^afto turn the hearts of the fathers to the children, and ^agthe disobedient to the wisdom of the just, ^ahto make ready for the Lord a people prepared.”

18 And Zechariah said to the angel, ^ai“How shall I know this? For I am an old man, and my wife is advanced in years.” 19 And the angel answered him, “I am ^ajGabriel. ^akI stand in the presence of God, and I was sent to speak to you and to bring you this good news. 20 And behold, ^alyou will be silent and unable to speak until the day that these things take place, because you did not believe my words, which will be fulfilled in their time.”

Romans 9:6-9

6 But it is not as though the word of God has failed. For not all who are descended from Israel belong to Israel, 7 and not all are children of Abraham ^ambecause they are his offspring, but ^an“Through Isaac shall your offspring be named.” 8 This means that it is not the children of the flesh who are the children of God, but ^aothe children of the promise are counted as offspring. 9 For this is what the promise said: ^ap“About this time next year I will return, and Sarah shall have a son.”

Galatians 4:28-31

28 Now you, ^{▼▼Some manuscripts we} brothers, ^arlike Isaac, ^asare children of promise. 29 But just as at that time he who was born according to the flesh ^atpersecuted him who was born according to the Spirit, ^auso also it is now. 30 But what does the Scripture say? ^av“Cast out the slave woman and her son, for the son of the slave woman shall not inherit with the son of the free woman.” 31 So, brothers, we are not children of the slave but ^awof the free woman.