Watchfulness with a Promise

God’s servants, faithful pastors, are door-keepers in the house of God, watchmen upon the walls of Zion, men appointed by God to keep watch over your souls and to guard the house of God, protecting his church from the assaults of Satan; but, as you care for your souls, you must yourselves be watchful. — That is Paul’s doctrine in our text.
I must watch over your souls as God’s appointed doorkeeper in this assembly, as God’s appointed watchman on the walls of Zion. You must watch over your own soul. The primary, central thing over which we must constantly be watchful is gospel doctrine, always guarding against anything that would turn us away from the simplicity that is in Christ Jesus.