The subject of tithing is bound to spawn arguments in this time, but the biblical teaching about it is very simple: The tithe is God's and still in force!
John Ritenbaugh focuses upon the superiority of Christ and the Melchizedek priesthood, pointing out that in every way it is superior to the Aaronic priesthood because Christ tenure is eternal rather than temporal, guaranteeing both continuity and quality. Hebrews 7 is the only portion of scripture that carefully examines Christ's credentials as High Priest, giving us concrete hope of our salvation. His blameless and undefiled life made Him an appropriate guarantor or co-signer covering our imperfections. After establishing the need for a change of the priesthood, Paul describes the details as to how the new priesthood will administer the New Covenant, amplifying and bringing into stark reality what had been only seen in shadowy outline in the Old Covenant. The New Covenant is established on better promises, not law changes.
John Ritenbaugh affirms that Jesus Christ's sinlessness was not the result of being a programmed automaton, but instead as a result of volition or choice—actively struggling against carnal pulls and temptations, enabling Him to fully empathize and have compassion on those tempted in like manner. He experienced exactly the same kind of temptations and suffering we experience, qualifying Him for the role of High Priest, bridge-builder between man and God, the same role for which members of God's called-out Family are also qualifying. Like our Elder Brother, we must learn righteous judgment by continually exercising our spiritual muscle, practicing making choices, distinguishing right from wrong, but building godly character and spiritual maturity through the enabling power of God's Holy Spirit.