In chapters [[Colossians 3|3]] and [[Colossians 4|4]] Paul writes practically, teaching about various duties that naturally flow from the doctrines he has expounded. The Colossians are exhorted to mind things that are above ([[Colossians 3]]:1-4), to mortify every evil principle of their nature, and to put on the new man ([[Colossians 3]]:5-14). Many special duties of the Christian life are also insisted upon as the fitting evidence of the Christian character.