Hebrews 7:6

3 Being without father or mother, or family, having no birth or end to his life, being made like the Son of God, is a priest for ever.

4 Now see how great this man was, to whom our father Abraham gave a tenth part of what he had got in the fight.

5 And it is true that by the law, those of the sons of Levi who have the position of priests may take a tenth part of the people's goods; that is to say, they take it from their brothers though these are the sons of Abraham.

6 But this man, who was not of their family, took the tenth from Abraham, and gave a blessing to him to whom God had given his undertaking.

7 But there is no doubt that the less gets his blessing from the greater.

8 Now at the present time, men over whom death has power take the tenth; but then it was taken by one of whom it is witnessed that he is living.

9 And we may say that in Abraham, even Levi, who has a right to take the tenth part, gave it;