2 Chronicles 11:21

And Rehoboam loved Maacah daughter of Absolom, above all his wives and his concubines, for, eighteen wives, took he, and sixty concubines, - and begat twenty-eight sons, and sixty daughters.

Deuteronomy 17:17

Neither shall he multiply to himself wives, that his heart turn not aside, - nor silver and gold, shall he multiply to himself greatly.

2 Samuel 3:2-5

And there were born unto David, sons, in Hebron, - and it came to press that - His firstborn was Amnon, by Ahinoam, the Jezreelitess;

Judges 8:30

And, Gideon, had seventy sons, sprung from his own loins, - for, many wives, had he.

2 Samuel 5:13

And David took him yet more concubines and wives, out of Jerusalem, after he had come from Hebron, and there were, yet further, born unto David, sons and daughters.

1 Kings 11:3

So it came to pass that he had seven hundred wives who were princesses, and three hundred concubines, - and, his wives, turned aside, his heart.

1 Chronicles 3:1-9

Now, these, were the sons of David, who were born to him in Hebron, - the firstborn, Amnon, by Ahinoam the Jezreelitess, the second, Daniel, by Abigail the Carmelitess;

2 Chronicles 11:23

So he took heed, and dispersed all his sons throughout all the lands of Judah and Benjamin, unto all the fortified cities, and gave them food in abundance, - and asked a multitude of wives.

Song of Songs 6:8-9

Threescore, are the queens, and, fourscore, are the concubines, - and, virgins, there are, without number.

Treasury of Scripture Knowledge

Summary

And Rehoboam loved Maachah the daughter of Absalom above all his wives and his concubines: (for he took eighteen wives, and threescore concubines; and begat twenty and eight sons, and threescore daughters.)

Bible References

Eighteen wives

2 Chronicles 11:23
So he took heed, and dispersed all his sons throughout all the lands of Judah and Benjamin, unto all the fortified cities, and gave them food in abundance, - and asked a multitude of wives.
Deuteronomy 17:17
Neither shall he multiply to himself wives, that his heart turn not aside, - nor silver and gold, shall he multiply to himself greatly.
Judges 8:30
And, Gideon, had seventy sons, sprung from his own loins, - for, many wives, had he.
2 Samuel 3:2
And there were born unto David, sons, in Hebron, - and it came to press that - His firstborn was Amnon, by Ahinoam, the Jezreelitess;
2 Samuel 5:13
And David took him yet more concubines and wives, out of Jerusalem, after he had come from Hebron, and there were, yet further, born unto David, sons and daughters.
1 Kings 11:3
So it came to pass that he had seven hundred wives who were princesses, and three hundred concubines, - and, his wives, turned aside, his heart.
1 Chronicles 3:1
Now, these, were the sons of David, who were born to him in Hebron, - the firstborn, Amnon, by Ahinoam the Jezreelitess, the second, Daniel, by Abigail the Carmelitess;
Song of Songs 6:8
Threescore, are the queens, and, fourscore, are the concubines, - and, virgins, there are, without number.

General references

Deuteronomy 21:16
then shall it be, that in the day when he maketh his sons to inherit that which he hath, he may not treat the son of the beloved, instead of the son of the hated, as the firstborn;
2 Samuel 5:13
And David took him yet more concubines and wives, out of Jerusalem, after he had come from Hebron, and there were, yet further, born unto David, sons and daughters.
Song of Songs 6:8
Threescore, are the queens, and, fourscore, are the concubines, - and, virgins, there are, without number.