וַיִּשְׁאַל־לוֹ֙ בַּֽיהוָ֔ה וְצֵידָ֖ה נָ֣תַן ל֑וֹ וְאֵ֗ת חֶ֛רֶב גָּלְיָ֥ת הַפְּלִשְׁתִּ֖י נָ֥תַן לֽוֹ׃
And he inquired of the LORD for him, and gave him victuals, and gave him the sword of Goliath the Philistine.’
Read kabbalistic (mystical) interpretation of I Samuel 22:10: and classical mystical sources.