Normatively, in order for a person to be eternally saved, he or she must believe the Gospel. The true and biblical Gospel includes three main ideas. The fourth point below describes some of the results of believing the Gospel.
1) Jesus is God and man. Jesus is God incarnate. This is the sinless and holy Son of God, who lived a perfect and loving human life. Believing in any other Jesus is to believe in a false Christ, which cannot save your soul.
2) Jesus shed His blood and died on the cross for all of your sins: past, present, and future, according to the Scriptures. He was buried, and He was bodily resurrected from death to life on the third day according to the Scriptures. Believing this Gospel has the power to save your soul from punishment for your sins in Hell.
3) Salvation does not also include any good works from the person being saved (good works include water baptism, repentance from sins, discipleship, faithfulness till death, etc.) Jesus paid it all, not 99%. If a person is also believing in their good works to save them, they are believing a false gospel which cannot save their soul.
4) The results of believing this Gospel are that a person has immediate and total forgiveness of sins, has eternal and irrevocable life, and has Heaven as a guaranteed destination, no matter what sins they commit after the moment of belief (including suicide), and even if the person loses their faith afterwards, or if they do not do any good works at all.
Summary: Believing in Jesus’ Gospel, not your good works, immediately results in irrevocable and eternal life.
This true and biblical Gospel message is extremely rare in churches, on “Christian” radio, in books, and on YouTube.