Genesis 25:1

And Abraham took another wife, and her name was Keturah.

Genesis 23:1-2

And the life of Sarah was a hundred and twenty-seven years. These were the years of the life of Sarah.

Genesis 28:1

And Isaac called Jacob, and blessed him, and ordered him, and said to him, Thou shall not take a wife of the daughters of Canaan.

1 Chronicles 1:32-33

And the sons of Keturah, Abraham's concubine: she bore Zimran, and Jokshan, and Medan, and Midian, and Ishbak, and Shuah. And the sons of Jokshan: 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
And the life of Sarah was a hundred and twenty-seven years. These were the years of the life of Sarah.
Genesis 28:1
And Isaac called Jacob, and blessed him, and ordered him, and said to him, Thou shall not take a wife of the daughters of Canaan.
1 Chronicles 1:32
And the sons of Keturah, Abraham's concubine: she bore Zimran, and Jokshan, and Medan, and Midian, and Ishbak, and Shuah. And the sons of Jokshan: Sheba, and Dedan.