The Messiah told those who believed in him that they would not sin: “and you shall know the truth, and the truth shall make you free [from sin]” (John 8:32). However, many Christians believe that they continue to sin. The obvious conclusion is that they have not heard the truth.
The apostle Paul wrote this about the gospel:
“Moreover, brethren, I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand;
By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain.
For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures;
And that he was buried, and that he rose again the third day according to the scriptures” (1 Corinthians 15:1-4).
It is important to note that when Paul wrote this letter, the books of the New Testament had not yet been written, i.e., the Scriptures were the books of the Old Testament, not the Gospels of Matthew, Luke, Mark, and John. Christ himself preached this true gospel by referring to the books of the Old Testament (Luke 24:44-46), and Paul did the same from morning to night (Acts 28:23). The New Testament accounts are usually preached in a church, but this is not the gospel that Christ and the apostles preached, which, according to them, saves and delivers from sin.
Have you heard the witnesses in the Old Testament of how Christ died for our sins, was buried, and rose again on the third day? Please share if you know.