The document discusses submitting to God's righteousness rather than establishing one's own. It references 2 Corinthians 13:5-8, which talks about testing oneself to see if one is truly in the faith. The hope is that people will do what is right, even if it makes the author appear to fail the test. The Holy Spirit will teach and remind believers of what Jesus said. Having peace of mind and heart is a gift from God that the world cannot take away.