וּבָרוּךְ֙ אֵ֣ל עֶלְי֔וֹן אֲשֶׁר־מִגֵּ֥ן צָרֶ֖יךָ בְּיָדֶ֑ךָ וַיִּתֶּן־ל֥וֹ מַעֲשֵׂ֖ר מִכֹּֽל׃
and blessed be God the Most High, who hath delivered thine enemies into thy hand.’ And he gave him a tenth of all.
Read kabbalistic (mystical) interpretation of Genesis 14:20: and classical mystical sources.