2 Chronicles 11:21

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.)

Deuteronomy 17:17

Neither shall he multiply wives to himself, that his heart turn not away: neither shall he greatly multiply to himself silver and gold.

2 Samuel 3:2-5

And unto David were sons born in Hebron: and his firstborn was Amnon, of Ahinoam the Jezreelitess;

Judges 8:30

And Gideon had threescore and ten sons, his own offspring: for he had many wives.

2 Samuel 5:13

And David took himself more concubines and wives out of Jerusalem, after he was come from Hebron: and there were yet sons and daughters born to David.

1 Kings 11:3

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

1 Chronicles 3:1-9

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

2 Chronicles 11:23

And he dealt wisely, and dispersed of all his sons throughout all the countries of Judah and Benjamin, unto every fortified city: and he gave them provisions in abundance. And he procured many wives for them.

Song of Songs 6:8-9

There are threescore queens, and fourscore concubines, and virgins 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
And he dealt wisely, and dispersed of all his sons throughout all the countries of Judah and Benjamin, unto every fortified city: and he gave them provisions in abundance. And he procured many wives for them.
Deuteronomy 17:17
Neither shall he multiply wives to himself, that his heart turn not away: neither shall he greatly multiply to himself silver and gold.
Judges 8:30
And Gideon had threescore and ten sons, his own offspring: for he had many wives.
2 Samuel 3:2
And unto David were sons born in Hebron: and his firstborn was Amnon, of Ahinoam the Jezreelitess;
2 Samuel 5:13
And David took himself more concubines and wives out of Jerusalem, after he was come from Hebron: and there were yet sons and daughters born to David.
1 Kings 11:3
And he had seven hundred wives, princesses, and three hundred concubines: and his wives turned away his heart.
1 Chronicles 3:1
Now these were the sons of David, who were born unto him in Hebron; the firstborn Amnon, of Ahinoam the Jezreelitess; the second Daniel, of Abigail the Carmelitess:
Song of Songs 6:8
There are threescore queens, and fourscore concubines, and virgins without number.

General references

Deuteronomy 21:16
Then it shall be, when he makes his sons to inherit that which he has, that he may not make the son of the beloved firstborn before the son of the hated, who is indeed the firstborn:
2 Samuel 5:13
And David took himself more concubines and wives out of Jerusalem, after he was come from Hebron: and there were yet sons and daughters born to David.
Song of Songs 6:8
There are threescore queens, and fourscore concubines, and virgins without number.