How do we know God's good work is true in our lives?

The certainty of God's work in a believer's life is evidenced by inward transformation and outward fruit. When God begins a good work, it is often a secret and internal process that later manifests in a believer's desires, decisions, and actions. As Paul recounts the experiences of Lydia and the jailer's household, we see how their hearts were opened to respond to the gospel. This internal renewal is a basis for one’s assurance; it shows that God is actively involved in changing our hearts and minds to align with His will, leading us to faith in Christ and obedience in our lives.