Hebrews 7:10
7:9-10Levi was one of the sons of Jacob. He was ancestor of one of Israel's tribes . All the men from Levi's family served God in his house. Levi had a grandson, Aaron. Only Aaron and his family could become priests . See Numbers 1:50; Exodus 28:1. All Israel's people had to give a tenth part of what they had to the men from Levi's family. Then all the other men in Levi's family gave a tenth part of this to the priests . See Numbers 18:21-32.