'Perfection' in the Bible

Out of Zion, the perfection of beauty, God shines forth.

I have seen a limit to all perfection, but your commands are boundless. MEM

All that pass by clap their hands at you. They hiss and wag their head at the daughter of Jerusalem, [saying], Is this the city that men called The perfection of beauty, The joy of the whole earth?

Above all these things, walk in love, which is the bond of perfection.

Therefore leaving the teaching of the first principles of Christ, let us press on to perfection -- not laying again a foundation of repentance from dead works, of faith toward God,

Now if there was perfection through the Levitical priesthood (for under it the people have received the law), what further need was there for another priest to arise after the order of Melchizedek, and not be called after the order of Aaron?