וַיְמַלֵּ֤א מִיכָה֙ אֶת־יַ֣ד הַלֵּוִ֔י וַיְהִי־ל֥וֹ הַנַּ֖עַר לְכֹהֵ֑ן וַיְהִ֖י בְּבֵ֥ית מִיכָֽה׃
And Micah consecrated the Levite, and the young man became his priest, and was in the house of Micah.
Read midrashic interpretation of Judges 17:12: and classical rabbinic exegesis.