God's word contains all the knowledge necessary for salvation and for living a life that is pleasing to God. This means that the Bible is sufficient to guide believers in matters of life, doctrine, and practice. There are no additional revelations, traditions, or human insights needed to complete God's word.

Text: Psalm 19:7-8 (2 Timothy 3:14-17, Matthew 4:4, 2 Peter 1:3)