1 Corinthians 16:13

Watch ye. That is, keep awake, be vigilant, as the sentries posted around the camp of an army are on the alert at every moment for the slightest suggestion of danger. The fact that this exhortation is found in several places in the NT emphasizes the necessity for the Christian to be on guard against the efforts of the enemy to destroy him (see Matt. 24:42; 25:13; Mark 13:35; Acts 20:31; 1 Thess. 5:5, 6). Here the admonition would have special application to the peculiar dangers that surrounded the Corinthian believers. They were to take care lest their salvation should be endangered by dissensions, false doctrines, false teachers, erroneous practices, and the prevalence of idolatry around them.

Stand fast in the faith. For a discussion of “faith” as here used see on Acts 6:7. Jesus warned that there would be many false teachers and false prophets, who would seek to turn people away from the purity of the gospel and to lead them to accept doctrines that originate with Satan (see Matt. 24:4, 5, 11, 23, 24, 26). There is need for strong determination to adhere unwaveringly to the unadulterated Word of God (see Isa. 8:20; Matt. 24:13; Phil. 1:27; 4:1; 1 Thess. 5:21; Rev. 2:10).

Quit you like men. Gr. andrizo, “to act like a man.” In earlier English “quit” meant “to conduct oneself.” To be a Christian requires courage, boldness, perseverance, fortitude — in short, all the qualities of a real man. There is no place for cowardice, timidity, or fear. A noble character is developed only by those who place themselves unreservedly under the Saviour’s leadership (see Eph. 6:10).