Because of the subtle works of darkness and the importance of being a witness for the Lord, Paul said, "See then that ye walk circumspectly, not as fools, but as wise" (Eph. 5:15).
The word translated "see" means "to look, to consider, to take heed." It was as if Paul was waving a sign before them that said, "Stop, look and listen." Paul wanted believers to make a thorough check of the way they were living to be sure they were walking as they should be. Paul wanted them to make sure they were walking "circumspectly," which means "looking around" or "being cautious." The Greek word Paul used means "accurately" or "exactly." One of the reasons believers should live carefully is that unbelievers are observing them. To live carefully, believers must have an intelligent purpose in living. If we do not have such a purpose, our lives will not be as effective as the Lord desires.
Paul's purpose in living is seen in 1 Corinthians 2:2: "For I determined not to know any thing among you, save Jesus Christ, and him crucified." To the Philippians, he wrote: "According to my earnest expectation and my hope, that in nothing I shall be ashamed, but that with all boldness, as always, so now also Christ shall be magnified in my body, whether it be by life, or by death. For to me to live is Christ, and to die is gain" (1:20,21).
"Ponder the path of thy feet, and let all thy ways be established" (Prov. 4:26).