1 Kings 11:3

He had 700 wives who were princesses and 300 concubines, and they turned his heart away from the Lord.

2 Samuel 5:13-16

After he arrived from Hebron, David took more concubines and wives from Jerusalem, and more sons and daughters were born to him.

Judges 8:30-31

Gideon had 70 sons, his own offspring, since he had many wives.

Judges 9:5

He went to his father’s house in Ophrah and killed his 70 brothers, the sons of Jerubbaal, on top of a large stone. But Jotham, the youngest son of Jerubbaal, survived, because he hid himself.

2 Samuel 3:2-5

Sons were born to David in Hebron:

his firstborn was Amnon,
by Ahinoam the Jezreelite;

2 Chronicles 11:21

Rehoboam loved Maacah daughter of Absalom more than all his wives and concubines. He acquired 18 wives and 60 concubines and was the father of 28 sons and 60 daughters.

Ecclesiastes 7:28

which my soul continually searches for but does not find: among a thousand people I have found one true man, but among all these I have not found a true woman.

Treasury of Scripture Knowledge

Summary

And he had seven hundred wives, princesses, and three hundred concubines: and his wives turned away his heart.

General references

Bible References

Seven hundred

Judges 8:30
Gideon had 70 sons, his own offspring, since he had many wives.
Judges 9:5
He went to his father’s house in Ophrah and killed his 70 brothers, the sons of Jerubbaal, on top of a large stone. But Jotham, the youngest son of Jerubbaal, survived, because he hid himself.
2 Samuel 3:2
Sons were born to David in Hebron:

his firstborn was Amnon,
by Ahinoam the Jezreelite;
2 Samuel 5:13
After he arrived from Hebron, David took more concubines and wives from Jerusalem, and more sons and daughters were born to him.
2 Chronicles 11:21
Rehoboam loved Maacah daughter of Absalom more than all his wives and concubines. He acquired 18 wives and 60 concubines and was the father of 28 sons and 60 daughters.
Ecclesiastes 7:28
which my soul continually searches for but does not find: among a thousand people I have found one true man, but among all these I have not found a true woman.

General references

Exodus 34:16
Then you will take some of their daughters as brides for your sons. Their daughters will prostitute themselves with their gods and cause your sons to prostitute themselves with their gods.
Judges 3:6
The Israelites took their daughters as wives for themselves, gave their own daughters to their sons, and worshiped their gods.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.