5:15-21 Another remedy against sin, is care, or caution, it being impossible else to maintain purity of heart and life. Time is a talent given us by God, and it is misspent and lost when not employed according to his design. If we have lost our time heretofore, we must double our diligence for the future. Of that time which thousands on a dying bed would gladly redeem at the price of the whole world, how little do men think, and to what trifles they daily sacrifice it! People are very apt to complain of bad times; it were well if that stirred them more to redeem time. Be not unwise. Ignorance of our duty, and neglect of our souls, show the greatest folly. Drunkenness is a sin that never goes alone, but carries men into other evils; it is a sin very provoking to God. The drunkard holds out to his family and to the world the sad spectacle of a sinner hardened beyond what is common, and hastening to perdition. When afflicted or weary, let us not seek to raise our spirits by strong drink, which is hateful and hurtful, and only ends in making sorrows more felt. But by fervent prayer let us seek to be filled with the Spirit, and to avoid whatever may grieve our gracious Comforter. All God's people have reason to sing for joy. Though we are not always singing, we should be always giving thanks; we should never want disposition for this duty, as we never want matter for it, through the whole course of our lives. Always, even in trials and afflictions, and for all things; being satisfied of their loving intent, and good tendency. God keeps believers from sinning against him, and engages them to submit one to another in all he has commanded, to promote his glory, and to fulfil their duties to each other.
17. Wherefore—seeing that ye need to walk so circumspectly, choosing and using the right opportunity of good.
unwise—a different Greek word from that in Eph 5:15. Translate, "foolish," or "senseless."
understanding—not merely knowing as a matter of fact (Lu 12:47), but knowing with understanding.
the will of the Lord—as to how each opportunity is to be used. The Lord's will, ultimately, is our "sanctification" (1Th 4:3); and that "in every thing," meantime, we should "give thanks" (1Th 5:18; compare above, Eph 5:10).