Genesis 21:12

And God said unto Abraham, Let it not be grievous in thy sight because of the lad, and because of thy handmaid. In all that Sarah saith unto thee, hearken unto her voice. For in Isaac shall thy seed be called.

Hebrews 11:18

even he to whom it was said, In Isaac shall thy seed be called:

Genesis 17:19

And God said, Nay, but Sarah thy wife shall bear thee a son; and thou shalt call his name Isaac: and I will establish my covenant with him for an everlasting covenant for his seed after him.

Genesis 17:21

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

1 Samuel 8:7

And Jehovah said unto Samuel, Hearken unto the voice of the people in all that they say unto thee; for they have not rejected thee, but they have rejected me, that I should not be king over them.

1 Samuel 8:9

Now therefore hearken unto their voice: howbeit thou shalt protest solemnly unto them, and shalt show them the manner of the king that shall reign over them.

Isaiah 46:10

declaring the end from the beginning, and from ancient times things that are not yet done; saying, My counsel shall stand, and I will do all my pleasure;

Romans 9:7-8

neither, because they are Abraham's seed, are they all children: but, In Isaac shall thy seed be called.

Treasury of Scripture Knowledge

Summary

And God said unto Abraham, Let it not be grievous in thy sight because of the lad, and because of thy bondwoman; in all that Sarah hath said unto thee, hearken unto her voice; for in Isaac shall thy seed be called.

General references

Bible References

Hearken

1 Samuel 8:7
And Jehovah said unto Samuel, Hearken unto the voice of the people in all that they say unto thee; for they have not rejected thee, but they have rejected me, that I should not be king over them.
Isaiah 46:10
declaring the end from the beginning, and from ancient times things that are not yet done; saying, My counsel shall stand, and I will do all my pleasure;

In isaac

Genesis 17:19
And God said, Nay, but Sarah thy wife shall bear thee a son; and thou shalt call his name Isaac: and I will establish my covenant with him for an everlasting covenant for his seed after him.
Romans 9:7
neither, because they are Abraham's seed, are they all children: but, In Isaac shall thy seed be called.
Hebrews 11:18
even he to whom it was said, In Isaac shall thy seed be called:

General references

Genesis 21:3
And Abraham called the name of his son that was born unto him, whom Sarah bare to him, Isaac.
Genesis 25:5
And Abraham gave all that he had unto Isaac.

American Standard Version Public Domain