וַיִּקַּח֩ דָּוִ֨ד ע֜וֹד פִּֽלַגְשִׁ֤ים וְנָשִׁים֙ מִיר֣וּשָׁלִַ֔ם אַחֲרֵ֖י בֹּא֣וֹ מֵחֶבְר֑וֹן וַיִּוָּ֥לְדוּ ע֛וֹד לְדָוִ֖ד בָּנִ֥ים וּבָנֽוֹת׃
And David took him more concubines and wives out of Jerusalem, after he was come from Hebron; and there were yet sons and daughters born to David.
Read Kabbalistic (mystical) interpretations of II Samuel 5:13: Zohar and classical Jewish mystical sources, free online.