Sound doctrine is essential for worship because…
Sound doctrine is essential for a Christian’s discipleship and growth because what we believe determines how we live.
Sound doctrine is essential for the unity of the church because the only true unity is unity in the truth (1 Jn. 1:1-4; 2 Jn. 10-11).
Think about it. Without sound doctrine the church will be a jumbled mess of everyone’s personal beliefs. If the church without sound doctrine is united, it will either be united around whimsical sentiment or an explicit untruth. In either case:
Sound doctrine is essential for the health of the church because the church will always listen to someone, and it will always follow whoever it listens to. The only question is, will a church follow God or Satan? Will it confess the truth or lies? Will it uphold sound doctrine or false teaching?
To be specific, sound doctrine is essential for: