What does the Bible say about the eternal nature of salvation?

The eternal nature of salvation is encapsulated in texts such as John 3:16, which promises everlasting life to those who believe in Christ. This assurance provides profound comfort to believers, assuring them that their salvation is secure, eternally preserved by the power of God. Moreover, Jesus reinforces this eternal promise by stating that His sheep will never perish and cannot be taken from His or the Father’s hand. The permanence of salvation reflects God’s unchanging character and the assurance of His covenantal promises to His people, whereby they are granted eternal life.