Eternal Security, also known as “once saved, always saved,” is the belief that once a person is genuinely saved by faith in Jesus Christ, they cannot lose their salvation.
This doctrine is supported by several verses in the King James Version (KJV) of the Bible.
John 10:28-29 (KJV),Romans 8:38-39 (KJV),Ephesians 1:13-14 (KJV),Philippians 1:6 (KJV),1 Peter 1:4-5 (KJV)