Genesis 21:12

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

Hebrews 11:18

Of whom it was said, That in Isaac shall thy seed be called:

Genesis 17:19

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

Genesis 17:21

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

1 Samuel 8:7

And the LORD said to Samuel, Hearken to the voice of the people in all that they say to thee: for they have not rejected thee, but they have rejected me, that I should not reign over them.

1 Samuel 8:9

Now therefore hearken to their voice: yet protest solemnly to them, and show them the manner of the king that will reign over them.

Isaiah 46:10

Declaring the end from the beginning, and from ancient times the 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 the seed of Abraham, 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 the LORD said to Samuel, Hearken to the voice of the people in all that they say to thee: for they have not rejected thee, but they have rejected me, that I should not reign over them.
Isaiah 46:10
Declaring the end from the beginning, and from ancient times the 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, Sarah thy wife shall bear thee a son indeed; and thou shalt call his name Isaac: and I will establish my covenant with him for an everlasting covenant, and with his seed after him.
Romans 9:7
Neither because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called.
Hebrews 11:18
Of whom it was said, That in Isaac shall thy seed be called:

General references

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