John 5:46-47 phbt 46  For if you had trusted Moses, you would also trust me, for he wrote about Me. 47  And if you do not believe his writings, how will you believe my words?"
Exodus 12:14 World English Bible
This day shall be a memorial for you. You shall keep it as a feast to Yahweh. You shall keep it as a feast throughout your generations by an ordinance FOREVER.
Exodus 12:17 And ye shall observe the feast of unleavened bread; for in this selfsame day have I brought your armies out of the land of Egypt: therefore shall ye observe this day in your generations by an ordinance for ever.
Exodus 12:24 And ye shall observe this thing for an ordinance to thee and to thy sons for ever.
Exodus 31:17 It is a sign between me and the children of Israel for ever: for in six days the LORD made heaven and earth, and on the seventh day he rested, and was refreshed.

Moses said that the law is forever.