Why is preaching the true gospel essential for a church?

Preaching the true gospel is foundational to the life and mission of a church. It ensures that the congregation is fed with the truth of God's Word, which, as stated in Galatians 1:8-9, warns against any alterations to the gospel message that can lead to a perversion of Christ's work. A church that proclaims the true gospel emphasizes salvation by grace alone, through faith alone, in Christ alone, thus glorifying God above any attempts to gather people through superficial means. When a church embraces the full counsel of God's Word and the richness of the gospel, it can cultivate a community that honors Christ, builds up believers, and reaches out to the world with the authentic message of salvation.