Hebrews 2:10

2:10 For it was fitting for him, for whom and through whom all things exist, in bringing many sons to glory, to make the pioneer of their salvation perfect through sufferings.

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.