Luke 1:57
Now Elizabeth's full time came that she should be delivered; and she brought forth a son.
Genesis 21:2-3
For Sarah conceived, and bore Abraham a son in his old age, at the set time of which God had spoken to him.
Numbers 23:19
God is not a man, that he should lie; neither the son of man, that he should repent: has he said, and shall he not do it? or has he spoken, and shall he not make it good?
Luke 1:13
But the angel said unto him, Fear not, Zachariah: for your prayer is heard; and your wife Elizabeth shall bear you a son, and you shall call his name John.
Luke 2:6-7
And so it was, that, while they were there, the days were accomplished that she should be delivered.