Bible Verses About Union With Christ: Exhorted to maintain

Abide in me, and I in you. As the branch cannot bear fruit of itself, except it abide in the vine; no more can ye, except ye abide in me.

Who, when he came, and had seen the grace of God, was glad, and exhorted them all, that with purpose of heart they would cleave unto the Lord.

Rooted and built up in him, and stablished in the faith, as ye have been taught, abounding therein with thanksgiving.