If there’s any statement that summarizes the Bible in a nutshell, it is the fact that God loved us so much that He sent His Son to die for our sins on the cross. Understanding the impact of John 3:16 in our own lives will begin a personal journey (a new chapter, if you will) with the Lord Jesus Christ in the pursuit of holiness among all other things spiritual.
But there is another constant in our lives: sin. We have to keep battling our fleshly nature in order to pursue desires that are spiritual in nature. And this battle between good and evil continues until we leave our physical bodies in death. And our ability to live a life pleasing in the eyes of God will get us to Heaven and not by wearing a brown scapular, as most Catholics would have you believe.
In theological circles, this aspect is also known as conditional security, and most people who believe in the Word of God will tell you that the Bible does not offer any kind of eternal security, as a lot of false teachers and preachers will have you believe.
Of course, these people who contort the Word of God for their gain were already mentioned by Jesus as a follow-up to the post trib rapture where people who have been true to the faith of Christianity will be lifted up into Heaven while the others get left behind.
At another level altogether, there are questions that you might have about the term ‘unforgivable sin’. While most people believe that it might be lying, cheating, stealing, lust, witchcraft, and so on and so forth, the truth is that in the passage in which the teachers of the law accused Jesus of being possessed by a demon, He said that in saying this about Him, they had committed an eternal sin.
This is yet another classic example of how the Bible can be misunderstood, and therefore, the simplest solution to getting rid of doubt is to continue to read the Bible and ask for God’s wisdom to understand it as a Christian.