One who has become a priest not on the basis of a regulation as to his ancestry but on the basis of the power of an indestructible life.
NIV
Who has been constituted a Priest, not on the basis of a bodily legal requirement [an externally imposed command concerning His physical ancestry], but on the basis of the power of an endless and indestructible Life.
AMP
Who is made, not after the law of a carnal commandment, but after the power of an endless life.
KJV
Because of this oath, Jesus has become the guarantor of a better covenant.
NIV
In keeping with [the oath's greater strength and force], Jesus has become the Guarantee of a better (stronger) agreement [a more excellent and more advantageous covenant].
AMP
By so much was Jesus made a surety of a better testament.
KJV
And Abraham gave him a tenth of everything. First, the name Melchizedek means "king of righteousness"; then also, "king of Salem" means "king of peace."
NIV
And Abraham gave to him a tenth portion of all [the spoil]. He is primarily, as his name when translated indicates, king of righteousness, and then he is also king of Salem, which means king of peace.
AMP
To whom also Abraham gave a tenth part of all; first being by interpretation King of righteousness, and after that also King of Salem, which is, King of peace;
KJV
Just think how great he was: Even the patriarch Abraham gave him a tenth of the plunder!
NIV
Now observe and consider how great [a personage] this was to whom even Abraham the patriarch gave a tenth [the topmost or the pick of the heap] of the spoils.
AMP
Now consider how great this man was, unto whom even the patriarch Abraham gave the tenth of the spoils.
KJV
Now the law requires the descendants of Levi who become priests to collect a tenth from the people – that is, from their kindred – even though their kindred are descended from Abraham.
NIV
And it is true that those descendants of Levi who are charged with the priestly office are commanded in the Law to take tithes from the people--which means, from their brethren--though these have descended from Abraham.
AMP
And verily they that are of the sons of Levi, who receive the office of the priesthood, have a commandment to take tithes of the people according to the law, that is, of their brethren, though they come out of the loins of Abraham:
KJV