How do we know the doctrine of new beginnings is true?

The doctrine of new beginnings is firmly supported by Scripture, especially in 2 Corinthians 5:17, which states that anyone in Christ is a new creation; old things have passed away and all things have become new. This transformation is not just metaphorical but underscores the reality of spiritual rebirth, where individuals are liberated from the bondage of sin and enter into a new relationship with God through Christ. Additionally, the account of Israel crossing the Jordan serves as a typological illustration of moving from despair to hope, confirming that Christ is the only way to enjoy this new beginning.