Then the LORD said, “I will surely return to you at this time next year, and your wife Sarah will have a son!”
The LORD says He will return at the same time next year, and Sarah will have a son.
It states the promised birth with a definite time.
9“Where is your wife Sarah?” they asked. 10Then the LORD said, “I will surely return to you at this time next year, and your wife Sarah will have a son!” 11Now Sarah was behind him, listening at the entrance to the tent. And Abraham and Sarah were already old and well along in years; Sarah had passed the age of childbearing. 12So she laughed to herself, saying, “After I am worn out and my master is old, will I now have this pleasure?” 13And the LORD asked Abraham, “Why did Sarah laugh and say, ‘Can I really bear a child when I am old?’ 14Is anything too difficult for the LORD? At the appointed time I will return to you — in about a year — and Sarah will have a son.” 15But Sarah was afraid, so she denied it and said, “I did not laugh.”