Colossians 1:28-2:5

28 Him we preach, warning every man and teaching every man in all wisdom, that we may present every man perfect in Christ Jesus. 29 To this end I also labor, striving according to His working which works in me mightily.

Not Philosophy but Christ

For I want you to know what a great conflict[a] I have for you and those in Laodicea, and for as many as have not seen my face in the flesh, that their hearts may be encouraged, being knit together in love, and attaining to all riches of the full assurance of understanding, to the knowledge of the mystery of God, [b]both of the Father and of Christ, in whom are hidden all the treasures of wisdom and knowledge.

Now this I say lest anyone should deceive you with persuasive words. For though I am absent in the flesh, yet I am with you in spirit, rejoicing [c]to see your good order and the steadfastness of your faith in Christ.