What does the Bible say about good doctrine?

In Proverbs 4:1-2, we see the instruction of a father to his children, highlighting the importance of attending to good doctrine. Good doctrine includes robust, God-honoring truths that exalt Christ and clarify His redemptive work. This teaching is essential because it shapes our understanding of salvation, encourages faith in God’s sovereignty, and informs our conduct as believers. A sound understanding of doctrine helps believers remain grounded in the truth amidst various false teachings and distractions.