The doctrine of eternal security, also known as “once saved, always saved” (OSAS), is one of the most hotly debated topics within Christianity. On one side, you have those who argue that a believer, though saved by faith, is not guaranteed salvation eternally. On the other side are those who say salvation is guaranteed once a person believes the gospel and receives Jesus. I created this “cheatsheet” to help those who are on the same journey I went on a few years ago — those who are seeking the truth and are willing to look into the scriptures for themselves. In it, you will find many of the crucial verses that contributed to the shift in my perspective on this topic.