Act wisely toward outsiders, redeeming the time.
5. Walk wisely. He makes mention of those that are without, in contrast with those that are of the household of faith. (Galatians 6:10.) For the Church is like a city of which all believers are the inhabitants, connected with each other by a mutual relationship, while unbelievers are strangers. But why would he have regard to be had to them, rather than to believers?
The apostle exhorts them further to a prudent and decent conduct towards all those with whom they conversed, towards the heathen world, or those out of the Christian church among whom they lived (Col 4:5): Walk in wisdom towards those who are without.
Commenting on Colossians 4:5-6
Walk in wisdom,.... Or wisely, circumspectly, not as fools, but as wise men; See Gill on Eph 5:15. Towards them that are without; so the Jews used to call the Gentiles, all that were out of their own land, that were not of their nation or religion, who were aliens from them, and strangers to their privileges; and sometimes the unbelieving. Jews bear the same character, see Mar 4:11.