Hebrews 1:2

1:2 in these last days he has spoken to us in a son, whom he appointed heir of all things, and through whom he created the world.

Hebrews 7:5

7:5 And those of the sons of Levi who receive the priestly office have authorization according to the law to collect a tithe from the people, that is, from their fellow countrymen, although they too are descendants of Abraham.