so then let's not sleep, as the rest do, but let's watch and be sober.
And be sober - The word here used (νήφω nēphō) is rendered sober in 1 Thessalonians 5:6, 1 Thessalonians 5:8; 1 Peter 1:13; 1 Peter 5:8; and watch in 2 Timothy 4:5, and 1 Peter 4:7. It does not elsewhere occur in the New Testament. It properly means, to be temperate or abstinent, especially in respect to wine. Joseph. Jewish Wars, 5. 5, 7; Xenophon, Cyr. 7. 5, 20; and then it is used in a more general sense, as meaning to be sober-minded, watchful, circumspect. In this passage there is an allusion to the fact that persons not only sleep in the night, but that they are frequently drunken in the night also. The idea is, that the Lord Jesus, when he comes, will find the wicked sunk not only in carnal security, but in sinful indulgences, and that those who are Christians ought not only to be awake and to watch as in the day-time, but to be temperate. They ought to be like persons engaged in the sober, honest, and appropriate employments of the day, and not like those who waste their days in sleep, and their nights in revelry.