How do we know that the fruits of righteousness come from God?

The Apostle Paul emphasizes that the fruits of righteousness are 'by Jesus Christ', affirming that they don’t originate from human effort but rather from the divine work of Christ in the believer's life. Just as a branch cannot bear fruit by itself unless it abides in the vine, believers must remain in Christ to produce these righteous fruits. This doctrine teaches that all good in a believer's life is a result of God's grace and not their merit. The realization of this truth inspires humility and dependence on God, reinforcing the believer's assurance of salvation as it is grounded in Christ’s righteousness.