I wish Pastors and teachers would abolish the phrase “once saved always saved” it going to send a lot of people to hell. They don’t teach that if you go back to that life style and stay there, you are not saved. They go right back to the sinful life style thinking that they are locked into salvation. I was in a bible study that taught that, it didn’t sit right with my spirit so I got out of it.
Read 2 Cor. 1:21-22. It’s a follow up to Ephesians 1:13-14 and is stated again in 2 Cor 5:5.
“Now it is God who makes both us and you stand firm in Christ. He anointed us, set his seal of ownership on us, and put his Spirit in our hearts as a deposit, guaranteeing what is to come.”
In Ephesians 1:13-14 Paul said that we were sealed when we heard the word of truth and believed it. At that moment we were given the Holy Spirit as a deposit guaranteeing our inheritance. In 2 Cor. 1:21 he added that God Himself has taken responsibility for keeping us that way, having put His seal of ownership on us. In 2 Cor. 5:5 he concluded the thought by saying that God made us for the very purpose of dwelling in our eternal house in heaven and that’s why He sealed us with the Holy Spirit.
Each passage says that the indwelling Holy Spirit is a deposit guaranteeing our inheritance. There are no clearer statements anywhere in Scripture about the security of our position. Neither are there any that contradict it. The fact that it doesn’t feel right to you is no justification for saying that many people who believe it will wind up in hell.