How do we know the importance of bearing fruit in our Christian lives?

In Matthew 21:18-22, Jesus curses a fig tree that bore no fruit as a powerful metaphor for the Jewish church, which had the outward appearance of religion but lacked genuine faith and good works. This incident underlines that mere appearances can be misleading; true believers will manifest the fruit of the Spirit as evidence of their saving faith (Galatians 5:22-23). The withering of the fig tree serves as a dire warning to Christians today about the danger of complacency and superficial faith. A fruitful life is essential in demonstrating genuine union with Christ and is a sign of authentic discipleship, reflecting God's transformative work in us.