Genesis 26:35

Who were a grief of mind to Isaac and Rebekah.

Genesis 6:2

That the sons of God saw the daughters of men that they were fair; and they took them wives of all whom they chose.

Genesis 27:46-2

And Rebekah said to Isaac, I am weary of my life, because of the daughters of Heth: if Jacob shall take a wife of the daughters of Heth, such as these who are of the daughters of the land, what good will my life do me?

Genesis 28:8

And Esau seeing that the daughters of Canaan pleased not Isaac his father;

Treasury of Scripture Knowledge

Summary

Which were a grief of mind unto Isaac and to Rebekah.

General references

Bible References

Which

Genesis 6:2
That the sons of God saw the daughters of men that they were fair; and they took them wives of all whom they chose.
Genesis 27:46
And Rebekah said to Isaac, I am weary of my life, because of the daughters of Heth: if Jacob shall take a wife of the daughters of Heth, such as these who are of the daughters of the land, what good will my life do me?
Genesis 28:1
And Isaac called Jacob, and blessed him, and charged him, and said to him, Thou shalt not take a wife of the daughters of Canaan.

General references

Genesis 34:9
And make ye marriages with us: give your daughters to us, and take our daughters to you.