How do we know that our beliefs are approved by God?

To be approved by God, one must believe what God says in His Word. The sermon emphasizes that the approval of one's beliefs is not based on self-commendation, but rather on adherence to the truth of Scripture as judged by the Lord. Paul speaks of 'approved' beliefs in 1 Corinthians 11, pointing out that heresies arise when one selects what to believe based on personal choice rather than divine revelation. The genuine believer will accept God's Word as truth without hesitation, leading to a confirmation of their faith as being aligned with divine approval (2 Corinthians 10). A belief that is not derived from Scripture constitutes heresy, reflecting a deviation from what God requires.