Expositor's Bible Commentary Commentary Ephesians 5:15

"Look therefore carefully how ye walk, not as unwise, but as wise;" — Ephesians 5:15 (ASV)

Further exhortations follow, backing up v.11. Because of their illumination, believers will pay scrupulous attention to their personal behavior (v.8b), in order that they may lead an irreproachable life. The metaphorical contrast between light and darkness is now replaced by that between wisdom and folly. Christians must no longer act like simpletons, since God’s own wisdom is always available to them (1:8–9; 3:10).