Genesis 21:12

and God saith unto Abraham, 'Let it not be wrong in thine eyes because of the youth, and because of thy handmaid: all that Sarah saith unto thee -- hearken to her voice, for in Isaac is a seed called to thee.

Hebrews 11:18

of whom it was said -- 'In Isaac shall a seed be called to thee;'

Genesis 17:19

and God saith, 'Sarah thy wife is certainly bearing a son to thee, and thou hast called his name Isaac, and I have established My covenant with him, for a covenant age-during, to his seed after him.

Genesis 17:21

and My covenant I establish with Isaac, whom Sarah doth bear to thee at this appointed time in the next year;'

1 Samuel 8:7

And Jehovah saith unto Samuel, 'Hearken to the voice of the people, to all that they say unto thee, for thee they have not rejected, but Me they have rejected, from reigning over them.

1 Samuel 8:9

And now, hearken to their voice; only, surely thou dost certainly protest to them, and hast declared to them the custom of the king who doth reign over them.'

Isaiah 46:10

Declaring from the beginning the latter end, And from of old that which hath not been done, Saying, 'My counsel doth stand, And all My delight I do.'

Romans 9:7-8

nor because they are seed of Abraham are all children, but -- 'in Isaac shall a seed be called to thee;'

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 saith unto Samuel, 'Hearken to the voice of the people, to all that they say unto thee, for thee they have not rejected, but Me they have rejected, from reigning over them.
Isaiah 46:10
Declaring from the beginning the latter end, And from of old that which hath not been done, Saying, 'My counsel doth stand, And all My delight I do.'

In isaac

Genesis 17:19
and God saith, 'Sarah thy wife is certainly bearing a son to thee, and thou hast called his name Isaac, and I have established My covenant with him, for a covenant age-during, to his seed after him.
Romans 9:7
nor because they are seed of Abraham are all children, but -- 'in Isaac shall a seed be called to thee;'
Hebrews 11:18
of whom it was said -- 'In Isaac shall a seed be called to thee;'

General references

Genesis 21:3
and Abraham calleth the name of his son who is born to him, whom Sarah hath born to him -- Isaac;
Genesis 25:5
And Abraham giveth all that he hath to Isaac;