For this is the word of promise, At this time will I come, and Sarah shall have a son.
But my covenant will I establish with Isaac, which Sarah shall bear unto thee at this set time in the next year.
And he said, I will certainly return unto thee according to the time of life; and, lo, Sarah thy wife shall have a son. And Sarah heard it in the tent door, which was behind him.
Is any thing too hard for the Lord? At the time appointed I will return unto thee, according to the time of life, and Sarah shall have a son.
For Sarah conceived, and bare Abraham a son in his old age, at the set time of which God had spoken to him.
And now I say unto you, Refrain from these men, and let them alone: for if this counsel or this work be of men, it will come to nought:
By faith Abraham, when he was tried, offered up Isaac: and he that had received the promises offered up his only begotten son,