וַֽתַּעֲנֶ֛ינָה הַנָּשִׁ֥ים הַֽמְשַׂחֲק֖וֹת וַתֹּאמַ֑רְןָ הִכָּ֤ה שָׁאוּל֙ באלפו [בַּאֲלָפָ֔יו] וְדָוִ֖ד בְּרִבְבֹתָֽיו׃
And the women sang one to another in their play, and said: Saul hath slain his thousands, And David his ten thousands.
Read midrashic interpretation of I Samuel 18:7: and classical rabbinic exegesis.