How do we know that being born again is through God's Word?

The process of being born again is strictly a divine act, as stated in James 1:18, where it is shown that God, by His will, causes us to be born again through the Word of truth. This new birth is not a result of human effort or will but rather a sovereign act of God's grace. The Apostle Paul also emphasizes in 1 Peter 1:3 that we are regenerated by God's mercy, demonstrating that our spiritual rebirth is entirely dependent on God's initiative. Thus, it is vital to understand that no human effort can initiate this new birth; it is entirely a miraculous work of God through His holy Word.