waxed

2 Samuel 5:12, 13
And David realized that the LORD had established him as king over Israel and had exalted his kingdom for the sake of His people Israel. . . .

fourteen wives

2 Chronicles 11:21
Rehoboam loved Maacah daughter of Absalom more than all his wives and concubines. In all, he had eighteen wives and sixty concubines, and he was the father of twenty-eight sons and sixty daughters.

begat

Judges 8:30, 31
Gideon had seventy sons of his own, since he had many wives. . . .

Judges 9:5
He went to his father's house in Ophrah, and on one stone murdered his seventy brothers, the sons of Jerubbaal. But Jotham, the youngest son of Jerubbaal, survived, because he hid himself.

Judges 10:4
He had thirty sons who rode on thirty donkeys. And they had thirty towns in the land of Gilead, which to this day are called Havvoth-jair.