What does the Bible teach about the necessity of being born again?

In John 3:3, Jesus emphasizes the necessity of being born again when He states, "Except a man be born again, he cannot see the kingdom of God." This new birth is an act of God's grace, signifying a transformation from spiritual death to spiritual life. It indicates the work of the Holy Spirit in bringing individuals to faith in Christ. The necessity of this spiritual rebirth is foundational for understanding salvation, as it is through this rebirth that one can truly apprehend the truth of the Gospel, receive the righteousness of Christ, and live in the light of His presence. It is a work initiated and accomplished solely by God.