Hello @Truth,Well, Paul is writing to the Colossians who were turning to the Faith, so it stands to reason that He was instructing them not to be drawn back through Judgmental criticisms from former fellow worshipers, from pagan way's! And that judgement should be through the Body of believer's, not men outside of the Faith!
No, with respect the epistle is written to believers. See Colossians 1:2. To the 'saints' and 'faithful' in Christ Jesus.
Within the love of Christ our Saviour
Chris