Ефесянам 5:15

that--rather as Greek, "See how ye walk," &c. The double idea is compressed into one sentence: "See (take heed) how ye walk," and "See that ye walk circumspectly." The manner, as well as the act itself, is included. See how ye are walking, with a view to your being circumspect (literally, accurate, exact) in your walk. Compare Col 4:5, "Walk in wisdom (answering to 'as wise' here) toward them that are without" (answering to "circumspectly," that is, correctly, in relation to the unbelievers around, not giving occasion of stumbling to any, but edifying all by a consistent walk). not as fools--Greek, "not as unwise, but as wise."

We had several important exhortations in the close of the foregoing chapter, and they are continued in this: particularly, I. We have here an exhortation to mutual love and charity (Eph 5:1, Eph 5:2). II. Against all manner of uncleanness, with proper arguments and remedies proposed against such sins: and some further cautions are added, and other duties recommended (v. 3-20). III. The apostle directs to the conscientious discharge of relative duties, from Eph 5:21, throughout this, and in the beginning of the next chapter.

5:15 Fools have no understanding of God and his ways, but those who are wise do know God and understand his ways (see Job 28:28; Prov 1:7; 2:1-22).