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.
It is in Christ that we find all the treasures of wisdom and knowledge. The plausible arguments, arguments that one might find reasonable, are ones that delude us from knowing God through Christ. In Christ are all the treasures of wisdom and knowledge. Yet there are those who say Jesus was not messiah, not Christ. Jesus is a metaphor. Jesus is one with God, but so are we all. Arguments abound to shake our faith in Christ. Certainly there is room for flexibility in theological discourse, but our foundation, the firmness of our faith is in Christ. All else is sinking sand.