'In Christ' in the Bible

To the saints and faithful believers in Christ [who are] at Colossae: Grace to you and peace [inner calm and spiritual well-being] from God our Father.

for we have heard of your faith in Christ Jesus [how you lean on Him with absolute confidence in His power, wisdom, and goodness], and of the [unselfish] love which you have for all the saints (God’s people);

[and He will do this] if you continue in the faith, well-grounded and steadfast, and not shifting away from the [confident] hope [that is a result] of the gospel that you have heard, which was proclaimed in all creation under heaven, and of which [gospel] I, Paul, was made a minister.

We proclaim Him, warning and instructing everyone in all wisdom [that is, with comprehensive insight into the word and purposes of God], so that we may present every person complete in Christ [mature, fully trained, and perfect in Him—the Anointed].

For even though I am absent [from you] in body, nevertheless I am with you in spirit, delighted to see your good discipline [as you stand shoulder to shoulder and form a solid front] and to see the stability of your faith in Christ [your steadfast reliance on Him and your unwavering confidence in His power, wisdom, and goodness].

And in Him you have been made complete [achieving spiritual stature through Christ], and He is the head over all rule and authority [of every angelic and earthly power].