We may not comprehend all the movements of the Holy Spirit in new birth, but we can be born again and sure by faith in Jesus Christ. There is mystery involved in new birth (John 3:8). Jesus taught that people enter the kingdom of God through new birth (John 3:5). It is a work of the Holy Spirit changing our hearts to believe on the Lord Jesus Christ (Romans 10:9).
The Bible confirms who are born again. "Whoever believes that Jesus is the Christ is born of God, and everyone who loves Him who begot also loves him who is begotten of him" (1 John 5:1). We are born again and sure by faith in the Lord Jesus Christ.
New birth is confirmed by truly believing the gospel of Jesus Christ. What is the gospel of Christ? He died for our sins. He is risen from the dead as our Lord (1 Corinthians 15:1-4). The written word of God and faith in the risen Christ is the evidence. That's certainly true in new birth.
Evidence of new birth is believing that Jesus is the Christ, the promised Messiah in the Old Testament and revealed as the Christ in the New Testament. Our new birth is confirmed by faith in the Lord Jesus Christ. That's the reason Charles Spurgeon wrote, "You are born again, if you believe Jesus is the Christ."
