1 Kings 11:3

And he hath women, princesses, seven hundred, and concubines three hundred; and his wives turn aside his heart.

2 Samuel 5:13-16

And David taketh again concubines and wives out of Jerusalem, after his coming from Hebron, and there are born again to David sons and daughters.

Judges 8:30-31

and to Gideon there have been seventy sons, coming out of his loin, for he had many wives;

Judges 9:5

and he goeth into the house of his father at Ophrah, and slayeth his brethren, sons of Jerubbaal, seventy men, on one stone; and Jotham, youngest son of Jerubbaal, is left, for he was hidden.

2 Samuel 3:2-5

And there are born to David sons in Hebron, and his first-born is Amnon, of Ahinoam the Jezreelitess,

2 Chronicles 11:21

And Rehoboam loveth Maachah daughter of Absalom above all his wives and his concubines -- for eighteen wives he hath taken, and sixty concubines -- and he begetteth twenty and eight sons, and sixty daughters.

Ecclesiastes 7:28

(that still my soul had sought, and I had not found), One man, a teacher, I have found, and a woman among all these I have not found.

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
and to Gideon there have been seventy sons, coming out of his loin, for he had many wives;
Judges 9:5
and he goeth into the house of his father at Ophrah, and slayeth his brethren, sons of Jerubbaal, seventy men, on one stone; and Jotham, youngest son of Jerubbaal, is left, for he was hidden.
2 Samuel 3:2
And there are born to David sons in Hebron, and his first-born is Amnon, of Ahinoam the Jezreelitess,
2 Samuel 5:13
And David taketh again concubines and wives out of Jerusalem, after his coming from Hebron, and there are born again to David sons and daughters.
2 Chronicles 11:21
And Rehoboam loveth Maachah daughter of Absalom above all his wives and his concubines -- for eighteen wives he hath taken, and sixty concubines -- and he begetteth twenty and eight sons, and sixty daughters.
Ecclesiastes 7:28
(that still my soul had sought, and I had not found), One man, a teacher, I have found, and a woman among all these I have not found.

General references

Exodus 34:16
and thou hast taken of their daughters to thy sons, and their daughters have gone a-whoring after their gods, and have caused thy sons to go a-whoring after their gods;
Judges 3:6
and take their daughters to them for wives, and their daughters have given to their sons, and they serve their gods;