How do we know that God works in the lives of believers?

The evidence of God’s work in the lives of believers is manifest through their transformation into individuals who exhibit goodness, knowledge, and the ability to encourage one another. Paul reassures the believers in Romans 15 that they are filled with goodness and knowledge, which comes from the Holy Spirit's work within them. This internal work empowers them to admonish and support each other, highlighting the reality of God's grace in their lives. It confirms that even when they falter, God's grace enables them to respond in love, encouraging growth in their community.