בֶּן־שְׁלֹשִׁ֥ים שָׁנָ֛ה דָּוִ֖ד בְּמָלְכ֑וֹ אַרְבָּעִ֥ים שָׁנָ֖ה מָלָֽךְ׃
David was thirty years old when he began to reign, and he reigned forty years.
Read halakhic rulings (Jewish law) on II Samuel 5:4 from the Mishneh Torah and classical halakhic sources, free online.