Romans 9:9

For this is the word of promise, At this time will I come, and Sara shall have a son.

Genesis 18:10

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.

Genesis 18:14

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.

Genesis 17:21

But my covenant will I establish with Isaac, which Sarah shall bear unto thee at this set time in the next year.

Genesis 21:2

For Sarah conceived, and bare Abraham a son in his old age, at the set time of which God had spoken to him.

Hebrews 11:11-12

Through faith also Sara herself received strength to conceive seed, and was delivered of a child when she was past age, because she judged him faithful who had promised.

Hebrews 11:17

By faith Abraham, when he was tried, offered up Isaac: and he that had received the promises offered up his only begotten son,

Treasury of Scripture Knowledge

Summary

For this is the word of promise, At this time will I come, and Sara shall have a son.

General references

Bible References

At this time

Genesis 17:21
But my covenant will I establish with Isaac, which Sarah shall bear unto thee at this set time in the next year.
Genesis 18:10
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.
Hebrews 11:11
Through faith also Sara herself received strength to conceive seed, and was delivered of a child when she was past age, because she judged him faithful who had promised.

General references

Genesis 25:5
And Abraham gave all that he had unto Isaac.
Galatians 4:28
Now we, brethren, as Isaac was, are the children of promise.