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 sixty concubines, and had twenty-eight sons and sixty daughters).

Deuteronomy 17:17

Nor shall he multiply wives to himself, so that his heart does not turn away. Nor shall he greatly multiply silver and gold to himself.

2 Samuel 3:2-5

And sons were born to David in Hebron. And his first-born was Amnon, the son of Ahinoam of Jezreel.

Judges 8:30

And Gideon had seventy sons, begotten of his body. For he had many wives.

2 Samuel 5:13

And David took more concubines and wives out of Jerusalem, after he had come from Hebron. And there were still more 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

And these were the sons of David, who were born to him in Hebron. The first-born, Amnon, of Ahinoam of Jezreel. The second, Daniel, of Abigail of Carmel.

2 Chronicles 11:23

And he dealt wisely and dispersed all his sons throughout all the lands of Judah and Benjamin, to all the fortified cities. And he gave them food in abundance. And he demanded many wives.

Song of Songs 6:8-9

There are sixty queens, and eighty 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 all his sons throughout all the lands of Judah and Benjamin, to all the fortified cities. And he gave them food in abundance. And he demanded many wives.
Deuteronomy 17:17
Nor shall he multiply wives to himself, so that his heart does not turn away. Nor shall he greatly multiply silver and gold to himself.
Judges 8:30
And Gideon had seventy sons, begotten of his body. For he had many wives.
2 Samuel 3:2
And sons were born to David in Hebron. And his first-born was Amnon, the son of Ahinoam of Jezreel.
2 Samuel 5:13
And David took more concubines and wives out of Jerusalem, after he had come from Hebron. And there were still more 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
And these were the sons of David, who were born to him in Hebron. The first-born, Amnon, of Ahinoam of Jezreel. The second, Daniel, of Abigail of Carmel.
Song of Songs 6:8
There are sixty queens, and eighty concubines, and virgins without number.

General references

Deuteronomy 21:16
then it shall be in the day when he makes his sons to inherit what he has, he may not cause to inherit the son of the beloved first-born before the son of the hated one, he who is truly the first-born.
2 Samuel 5:13
And David took more concubines and wives out of Jerusalem, after he had come from Hebron. And there were still more sons and daughters born to David.
Song of Songs 6:8
There are sixty queens, and eighty concubines, and virgins without number.