וַיֹּ֤אמֶר דָּוִד֙ אֶל־שָׁא֔וּל רֹעֶ֨ה הָיָ֧ה עַבְדְּךָ֛ לְאָבִ֖יו בַּצֹּ֑אן וּבָ֤א הָֽאֲרִי֙ וְאֶת־הַדּ֔וֹב וְנָשָׂ֥א שֶׂ֖ה מֵהָעֵֽדֶר׃
And David said unto Saul: ‘Thy servant kept his father’s sheep; and when there came a lion, or a bear, and took a lamb out of the flock,
Read kabbalistic (mystical) interpretation of I Samuel 17:34: and classical mystical sources.