In Bible times, cities would often build towers to watch the gates to avoid dangers looming from without (Isaiah 21:8). Watchmen would take turns watching the gate. These watchmen were responsible for sounding a trumpet should any danger appear (Ezekiel 33:6). The apostle Paul in his writings applied a spiritual application to this literal act of being a watchman. Just as cities needed men willingly staying awake and alert while others slept or were busy in their daily routines, churches need believers sober and watchful while others might be cumbered about with the cares of this world. Today’s watchmen must use their voices like a trumpet to sound the alarm when danger nears.
Paul and Barnabas admonished the heathen to turn from “vanities unto the living God.” One cannot trust in the Lord and simultaneously trust in anything else. In order for an individual to be saved, he must repent of trusting in anything other than the Lord. One aspect of repentance involves ceasing to trust vanity and turning one’s faith toward the living and true God. This saving faith needs to become a living faith following salvation. Believers should consistently turn from “vain thoughts” and love the law of God (Psalm 119:113). They should turn from the vain labours that spend their strength for nought (Isaiah 49:4) and be “steadfast . . . in the work of the Lord” knowing that their “labour is not in vain in the Lord” (1 Corinthians 15:58). Additionally, believers should turn from “vain words” (Ephesians 5:6) and hold “forth the word of life” (Philippians 2:16).
