I dont know much but heres what i know.
The 10 commandments-
These were a set of rules or laws made by god. If you break the 10 commandments you shall come back to god and god shall forgive you. “[Jesus] said to them again, Whose sins you forgive are forgiven them, and whose sins you retain are retained.
Beleif that Jeses died for us-
In the bible it says that if we dont believe that Jesus died on the cross for our sins we wont go to heaven. “Believe in the Lord Jesus, and you will be saved, you and your household.”