How was the law changed because of the change of priesthood from Levi to Melchizedek? The Levitical priests held authority based on their lineage but Christ holds authority based on His power over death- from the lineage of Melchizedek!  The law held power in showing us what is right and wrong by leading us to God whereas the cross holds greater power in actually changing our hearts from wrong to right through faith in Christ. -Teresa #dancingwithHim

Hebrews 7: 11-17 (NLT)
11 “So if the priesthood of Levi, on which the law was based, could have achieved the perfection God intended, why did God need to establish a different priesthood, with a priest in the order of Melchizedek instead of the order of Levi and Aaron?[b]

12 And if the priesthood is changed, the law must also be changed to permit it. 13 For the priest we are talking about belongs to a different tribe, whose members have never served at the altar as priests. 14 What I mean is, our Lord came from the tribe of Judah, and Moses never mentioned priests coming from that tribe.

15 This change has been made very clear since a different priest, who is like Melchizedek, has appeared. 16 Jesus became a priest, not by meeting the physical requirement of belonging to the tribe of Levi, but by the power of a life that cannot be destroyed. 17 And the psalmist pointed this out when he prophesied,

“You are a priest forever in the order of Melchizedek.”[c]