How do we know the doctrine of repentance is true?

The doctrine of repentance is fundamentally rooted in the teachings of Christ and the apostolic church. In Luke 13:3, Jesus emphatically states, 'Unless you repent, you will all likewise perish,' establishing repentance as a non-negotiable for salvation. This aligns with the notion that true faith is manifested in a changed life, marked by a turning away from sin and toward God. The subsequent observation in the life of those who genuinely repent verifies this doctrine's truth; conversions often occur when individuals encounter the weight of their sin and the wonder of forgiveness through repentance. Such experiences in the historic narrative of the church reflect the importance and reality of repentance as a vital component of faith.