Hebrews 7:12

For, seeing there is to be a change of the priesthood, of necessity, of law too, a change cometh.

Isaiah 66:21

And of them also, will I take for priests - for Levites, saith Yahweh,

Jeremiah 31:31-34

Lo! days are coming, Declareth Yahweh, - When I will solemnize - With the house of Israel and With the house of Judah, A new covenant:

Ezekiel 16:61

Thou shalt therefore remember thy ways and take to thyself reproach, by receiving thy sisters. The older than thou, And the younger than thou,- And I will give them unto thee for daughters Though not by thine own covenant.

Acts 6:13-14

And they set up false witnesses, who said - This man, ceaseth not speaking things against this holy place and the law;

Treasury of Scripture Knowledge

Summary

For the priesthood being changed, there is made of necessity a change also of the law.

Bible References

A change

Isaiah 66:21
And of them also, will I take for priests - for Levites, saith Yahweh,
Jeremiah 31:31
Lo! days are coming, Declareth Yahweh, - When I will solemnize - With the house of Israel and With the house of Judah, A new covenant:
Ezekiel 16:61
Thou shalt therefore remember thy ways and take to thyself reproach, by receiving thy sisters. The older than thou, And the younger than thou,- And I will give them unto thee for daughters Though not by thine own covenant.
Acts 6:13
And they set up false witnesses, who said - This man, ceaseth not speaking things against this holy place and the law;