הֲלוֹא־זֶ֣ה דָוִ֔ד אֲשֶׁ֧ר יַעֲנוּ־ל֛וֹ בַּמְּחֹל֖וֹת לֵאמֹ֑ר הִכָּ֤ה שָׁאוּל֙ בַּֽאֲלָפָ֔יו וְדָוִ֖ד ברבבתו [בְּרִבְבֹתָֽיו׃] (ס)
Is not this David, of whom they sang one to another in dances, saying: Saul hath slain his thousands, And David his ten thousands?’
Read Midrashic interpretations of I Samuel 29:5: rabbinic exegesis from Bereshit Rabbah, Shemot Rabbah and classical Midrash sources, free.