'Order of Melchizedek' in the Bible

as also he saith in another place, "Thou art a priest for ever, after the order of Melchizedek."

being addressed by God as highpriest after the order of Melchizedek.

where as forerunner for us Jesus entered, having become a highpriest for ever, after the order of Melchizedek.

If indeed perfection had been by the Levitical priesthood, (for under it the people hath received the Law,) what further need was there that a different priest should arise after the order of Melchizedek, and not be called alter the order of Aaron?

For it is testified of him, "Thou art a priest for ever, after the order of Melchizedek."