Numbers 16:10

and that he has brought you near, and all your brothers the sons of Levi with you? and do you seek the priesthood also?

Numbers 3:10

And you shall appoint Aaron and his sons, and they shall attend to their priesthood. The stranger who comes near shall be put to death."

Numbers 18:7

You and your sons with you shall keep your priesthood for everything concerning the altar, and for that inside the veil; and you shall serve: I give you the priesthood as a service of gift: and the stranger who comes near shall be put to death."

Proverbs 13:10

Pride only breeds quarrels, but with ones who take advice is wisdom.

Matthew 20:21-22

He said to her, "What do you want?" She said to him, "Command that these, my two sons, may sit, one on your right hand, and one on your left hand, in your Kingdom."

Luke 22:24

There arose also a contention among them, which of them was considered to be greatest.

Romans 12:10

In love of the brothers be tenderly affectionate one to another; outdo one another in showing honor;

Philippians 2:3

doing nothing through rivalry or through conceit, but in humility, each counting others better than himself;

3 John 1:9

I wrote something to the church, but Diotrephes, who loves to be first among them, does not accept what we say.

Treasury of Scripture Knowledge

Summary

And he hath brought thee near to him, and all thy brethren the sons of Levi with thee: and seek ye the priesthood also?

Bible References

And seek

Proverbs 13:10
Pride only breeds quarrels, but with ones who take advice is wisdom.
Matthew 20:21
He said to her, "What do you want?" She said to him, "Command that these, my two sons, may sit, one on your right hand, and one on your left hand, in your Kingdom."
Luke 22:24
There arose also a contention among them, which of them was considered to be greatest.
Romans 12:10
In love of the brothers be tenderly affectionate one to another; outdo one another in showing honor;
Philippians 2:3
doing nothing through rivalry or through conceit, but in humility, each counting others better than himself;
3 John 1:9
I wrote something to the church, but Diotrephes, who loves to be first among them, does not accept what we say.

General references

Genesis 30:15
She said to her, "Is it a small matter that you have taken away my husband? Would you take away my son's mandrakes, also?" Rachel said, "Therefore he will lie with you tonight for your son's mandrakes."
Deuteronomy 18:5
For the LORD your God has chosen him out of all your tribes, to stand to minister in the name of the LORD, him and his sons for ever.
Hebrews 5:4
Nobody takes this honor on himself, but he is called by God, just like Aaron was.