Bible Verses About Union With Christ: Necessary to growth in grace

and, being true in love, we may increase to Him in all things, who is the head--the Christ;

from whom the whole body, being fitly joined together and united, through the supply of every joint, according to the working in the measure of each single part, the increase of the body doth make for the building up of itself in love.

and not holding the head, from which all the body--through the joints and bands gathering supply, and being knit together--may increase with the increase of God.