While Colossians 2 and 3 both contain warnings and admonitions to saints, they are quite different in tone.
Col. 2:20-23 warns against those who seek to impose restrictions above and beyond those actually found in God’s word.
Therefore, if you died with Christ from the basic principles of the world, why, as though living in the world, do you subject yourselves to regulations—‘Do not touch, do not taste, do not handle,’ which all concern things which…