13 For he of whom these things are spoken belonged to another tribe, of which no man has ever served at the altar.
Hebrews 7:13 Cross References - KJ2000
Numbers 16:40
40 To be a memorial unto the children of Israel, that no stranger, who is not of the descendants of Aaron, come near to offer incense before the LORD; that he become not as Korah, and as his company: as the LORD said to him by the hand of Moses.
Numbers 17:5
5 And it shall come to pass, that the man's rod, whom I shall choose, shall blossom: and I will make to cease from me the murmurings of the children of Israel, which they murmur against you.
2 Chronicles 26:16-21
16 But when he was strong, his heart was lifted up to his destruction: for he transgressed against the LORD his God, and went into the temple of the LORD to burn incense upon the altar of incense.
17 And Azariah the priest went in after him, and with him fourscore priests of the LORD, that were valiant men:
18 And they withstood Uzziah the king, and said unto him, It belongs not unto you, Uzziah, to burn incense unto the LORD, but to the priests the sons of Aaron, that are consecrated to burn incense: go out of the sanctuary; for you have trespassed; neither shall it be for your honor from the LORD God.
19 Then Uzziah was angry, and had a censer in his hand to burn incense: and while he was angry with the priests, leprosy even broke out in his forehead before the priests in the house of the LORD, from beside the incense altar.
20 And Azariah the chief priest, and all the priests, looked upon him, and, behold, he was leprous in his forehead, and they thrust him out from there; yea, he himself hastened also to go out, because the LORD had struck him.
21 And Uzziah the king was a leper unto the day of his death, and dwelt in a separate house, being a leper; for he was cut off from the house of the LORD: and Jotham his son was over the king’s house, judging the people of the land.
Hebrews 7:11
11 If therefore perfection were by the Levitical priesthood, (for under it the people received the law,) what further need was there that another priest should rise after the order of Melchizedek, and not be called after the order of Aaron?
Hebrews 7:14
14 For it is evident that our Lord sprang out of Judah; of which tribe Moses spoke nothing concerning priesthood.