Why is God's knowledge of all things important for Christians?

The doctrine that God knows all things is a source of great comfort for Christians. As highlighted in 1 John 3:20, even when our hearts feel condemned, we find solace knowing that God is greater than our hearts and knows everything about us. This assurance speaks to His infinite wisdom and feedback over our lives; He understands our struggles, our fears, and our strengths. By relying on God's perfect knowledge, we can have confidence in His providence, knowing that He works all things together for our good (Romans 8:28).