Genesis 25:1

Now Abraham took another wife, whose name was Keturah.

Genesis 23:1-2

Now Sarah lived one hundred and twenty-seven years; these were the years of the life of Sarah.

Genesis 28:1

So Isaac called Jacob and blessed him and charged him, and said to him, “You shall not take a wife from the daughters of Canaan.

1 Chronicles 1:32-33

The sons of Keturah, Abraham’s concubine, whom she bore, were Zimran, Jokshan, Medan, Midian, Ishbak and Shuah. And the sons of Jokshan were Sheba and Dedan.

Treasury of Scripture Knowledge

Summary

Then again Abraham took a wife, and her name was Keturah.

Bible References

General references

Genesis 23:1
Now Sarah lived one hundred and twenty-seven years; these were the years of the life of Sarah.
Genesis 28:1
So Isaac called Jacob and blessed him and charged him, and said to him, “You shall not take a wife from the daughters of Canaan.
1 Chronicles 1:32
The sons of Keturah, Abraham’s concubine, whom she bore, were Zimran, Jokshan, Medan, Midian, Ishbak and Shuah. And the sons of Jokshan were Sheba and Dedan.