A must-have New Testament Bible Speaks Today on Colossians & Philemon. Fullness and freedom – two aspects of Christian life that we all want to share. Paul wrote about them at length (and depth) in his letter to the Christians at Colossae, where certain new teachers were proclaiming that 'mere Christianity' is not enough. There is, they suggested, a fuller experience, a greater liberation, than they had so far enjoyed. But Paul was adamant: all God's fullness is in Christ alone, and only through his complete work are we set free.