January 31, 2020Security of the Believer (6 Lessons) Speaker: admin In English Sunday School Studies, Security of the Believer StudyTags Eternal security, How to know for sure you are going to heaven0PDF The Study of the Security of the Believer is one of the key doctrinal studies for Christians. To know for sure that one is going to heaven when he or she dies is vital to living a victorious life here on the earth.