וָאֶקַּח֙ אֶת־הַלְוִיִּ֔ם תַּ֥חַת כָּל־בְּכ֖וֹר בִּבְנֵ֥י יִשְׂרָאֵֽל׃
And I have taken the Levites instead of all the first-born among the children of Israel.
Find Mishnaic references to Numbers 8:18: , passages from the 63 tractates of the Mishnah.