Hesabu 8 : 13 Numbers chapter 8 verse 13

Kisha utawaweka Walawi mbele ya Haruni, na mbele ya wanawe na kuwasongeza kwa Bwana wawe sadaka ya kutikiswa.
soma Mlango wa 8

You shall set the Levites before Aaron, and before his sons, and offer them as a wave offering to Yahweh.