Genesis 25:1

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

Genesis 23:1-2

And Sarah was one hundred and twenty-seven years old; these were the years of the life of Sarah.

Genesis 28:1

Then Isaac called Jacob and blessed him and charged him, saying, Thou shalt not take a wife of the daughters of Canaan.

1 Chronicles 1:32-33

Now the sons of Keturah, Abraham's concubine: she gave birth to Zimran, Jokshan, Medan, Midian, Ishbak, and Shuah. 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 Sarah was one hundred and twenty-seven years old; these were the years of the life of Sarah.
Genesis 28:1
Then Isaac called Jacob and blessed him and charged him, saying, Thou shalt not take a wife of the daughters of Canaan.
1 Chronicles 1:32
Now the sons of Keturah, Abraham's concubine: she gave birth to Zimran, Jokshan, Medan, Midian, Ishbak, and Shuah. The sons of Jokshan: Sheba and Dedan.