Colossians 2:1-5 (ESV)

For I want you to know how great a struggle I have for you and for those at Laodicea and for all who have not seen me face to face, ² that their hearts may be encouraged, being knit together in love, to reach all the riches of full assurance of understanding and the knowledge of God’s mystery, which is Christ, ³ in whom are hidden all the treasures of wisdom and knowledge. ⁴ I say this in order that no one may delude you with plausible arguments. ⁵ For though I am absent in body, yet I am with you in spirit, rejoicing to see your good order and the firmness of your faith in Christ.