2 Samuel 5:13

And David took [him] more concubines and wives out of
Jerusalem, after he was come from Hebron
He had six when he was at Hebron, ( 2 Samuel 3:2-5 ) , and now he took more, which was not to his honour, and contrary to the law of God, ( Deuteronomy 17:17 ) ; the concubines were a sort of half wives, as the word may signify, or secondary ones, and under the others:

and there were yet sons and daughters born to David;
besides those in Hebron mentioned in ( 2 Samuel 3:2-5 ) .