Galatians 4:19-20 My little children, of whom I travail in birth again until Christ be formed in you, I desire to be present with you now, and to change my voice; for I stand in doubt of you.
There are fifteen proofs that people can be born again more than once from the following Biblical facts:  All people had eternal life in Adam until he sinned. If he had not sinned, all people would have lived forever (Gen. 2:17; Rom. 5:12-21). The new birth of John 3:1-8 is a rebirth or a restoration to original life by the cancellation of the death penalty (Isa. 59:2; Matt. 1:21; John 3:16; Eph. 2:1-9). If this can thus happen once, it can happen again and again if necessary.  The gospel teaches forgiveness more than once – even 490 times (Matt. 18:21-22). Would God command people to do this, if He would not do it Himself?  If any believer sins, he has an advocate with the Father (1Jn. 2:1-2). What is this advocate for if not to restore backsliders to God?  If we confess our sins, He is faithful and just to forgive us (1Jn. 1:9).  Peter was once converted, confessing Jesus as the Son of God and the Christ, which brings the new birth (1Jn. 5:1; Matt. 16:16). He even had the power to preach and heal and had the Spirit in him (Matt. 10:1-20). Jesus predicted his backsliding and reconversion (Luke 22:31-34), proving that a converted man can and must be reconverted if he sins as Peter did in Matthew 26:69-75.  James taught a reconversion after one sin and incurs the death penalty again (Jas. 5:19-20).  Paul taught that God can graft men in again (Rom. 11:18-24).  Paul taught that men who have even overthrown the faith of others can come to repentance again (2Tim. 2:17-26).  Paul taught a rebirth again of backsliders (4:19), those who had fallen from grace (1:6-8; 3:1-5; 4:19; 5:4).  Paul taught us to restore a sinning brother (6:1). How could this be if it is impossible or unnecessary?  In Hebrews 6:1 Paul teaches the laying again of the foundation of repentance if necessary. Only apostates cannot be renewed to repentance (Heb. 6:4-9; 10:26-29). The reason is that they have thrown away all faith in the only sacrifice that can renew them. Backsliders who still have faith in Christ can be renewed regardless of how low in sin they are.  Jesus taught a reconversion (Rev. 2:4-5, 16, 21-26; 3:3, 15, 16).  In Luke 15:1-32, Jesus taught us that a sheep, coin, or boy could become lost and found again. It would be illogical to argue they could be lost and found but once, or that, once being found, they could never be lost again. It would be still more unreasonable to argue that if any one of them was lost and never found again that it was never found. What would be the process and result of finding them any number of times should they be lost? The same thing is possible of people who go back to sin any number of times.  David was renewed again after he sinned (Ps. 51:1-14).  God taught Israel time and again that He would restore them if they would meet conditions (Isa. 1:16-18; Jer. 3:13-15; 4:1-4; 18:1-10; Hos. 6:1-3; 10:12-13; 2Chron. 7:14).
There is nothing made but what can be revived, restored, recast, refinished, rebuilt, reanimated, refashioned, and remade be proper and skilled workmen. Shall we say the Almighty God is the only one who cannot do His work over and over again if it needs to be done? Shall we say man alone cannot be forgiven, restored to favour, and recreated more than once?
‘I desire to be present with you now, and to change my voice; for I stand in doubt of you.’ I would like to be present with you to know the extent of your backslidings, to alter my tone and soften my rebukes, for I stand in doubt of you.