'New' in the Bible

However, brothers and sisters, I could not talk to you as to spiritual people, but [only] as to worldly people [dominated by human nature], mere infants [in the new life] in Christ!

Clean out the old leaven so that you may be a new batch, just as you are, still unleavened. For Christ our Passover Lamb has been sacrificed.

In the same way, after supper He took the cup, saying, “This cup is the new covenant [ratified and established] in My blood; do this, as often as you drink it, in [affectionate] remembrance of Me.”