wash his

Numbers 19:7, 8, 19
Then the priest must wash his clothes and bathe his body in water; after that he may enter the camp, but he will be ceremonially unclean until evening. . . .

it shall be

Numbers 15:15, 16
The assembly is to have the same statute for both you and the foreign resident; it is a permanent statute for the generations to come. You and the foreigner shall be the same before the LORD. . . .

Exodus 12:49
The same law shall apply to both the native and the foreigner who resides among you."

Romans 3:29, 30
Is God the God of Jews only? Is He not the God of Gentiles too? Yes, of Gentiles too, . . .

Colossians 3:11
Here there is no Greek or Jew, circumcised or uncircumcised, barbarian, Scythian, slave, or free, but Christ is all and is in all.