Yep, fulfilled at the cross
Oh, you're still confused? Maybe if you read the verse in context; you better understand it.
17"Do not think that I came to destroy the Law or the Prophets. I did not come to destroy but to fulfill. 18For assuredly, I say to you,
till heaven and earth pass away, one jot or one tittle will by no means pass from the law till
all is fulfilled. 19Whoever therefore breaks one of the least of these commandments, and teaches men so, shall be called least in the kingdom of heaven; but whoever does and teaches them, he shall be called great in the kingdom of heaven. 20For I say to you, that unless your righteousness exceeds the righteousness of the scribes and Pharisees, you will by no means enter the kingdom of heaven.
All of the prophecies were not fulfilled on the pale (cross). Neither heaven nor Earth have passed away.
then the law changed:
Heb 7:12 For the priesthood being changed, there is made of necessity a change also of the law.
What law changed. Is it OK to worship the Golden Calf now? Will there be homos in heaven? Is it a free for all now? Just say the magic words, get baptized, live like Satan, and get out of jail free? Oh, wait...here's the law that he's taking about in the very next verse:
(CLV) Hb 7:11
If, indeed, then, perfection were through the Levitical priesthood (for the people have been placed~ under law with it), what need is there still for a different priest to arise according to the order of Melchizedek, and not said to be according to the order of Aaron?
(CLV) Hb 7:12
For, the priesthood being transferred, of necessity there is coming to be a transference of law also,
(CLV) Hb 7:13
for He of Whom these things are said partakes of a different tribe, from which not one has given heed to the altar.
Oh I see; it's not saying we can worship Satan. It's saying that the alter has been transferred from the Levitical Priesthood to Yahshua, along with the Priesthood itself. That makes sense.
Now it lines up with what Yahshua taught.