וַיִּקַּ֨ח מַקְל֜וֹ בְּיָד֗וֹ וַיִּבְחַר־ל֣וֹ חֲמִשָּׁ֣ה חַלֻּקֵֽי־אֲבָנִ֣ים ׀ מִן־הַנַּ֡חַל וַיָּ֣שֶׂם אֹ֠תָם בִּכְלִ֨י הָרֹעִ֧ים אֲשֶׁר־ל֛וֹ וּבַיַּלְק֖וּט וְקַלְּע֣וֹ בְיָד֑וֹ וַיִּגַּ֖שׁ אֶל־הַפְּלִשְׁתִּֽי׃
And he took his staff in his hand, and chose him five smooth stones out of the brook, and put them in the shepherd’s bag which he had, even in his scrip; and his sling was in his hand; and he drew near to the Philistine.
Sichot HaRan
For, all the words of dispute which each person speaks are an aspect of stones, for, letters are called stones, as is brought in Sefer Yetzirah, "Two stones build" etc., and they are aspect of pieces of stone, for, the stones that come by way of the words of dispute are divided and have no connection,