Improving the Quality of Your Eternal Life

In the next age, will all who have placed their faith in Jesus Christ fare the same? Are the roles, responsibilities, privileges and rewards for all believers identical in the coming age? If there are differences, by what criteria are they established? Does the level of a believers commitment as a disciple in this life matter? Moreover, what do Jesus and the writers of the New Testament have to say regarding this topic?
The answers to these questions may be unfamiliar to most, since they are rarely heard from the pulpits of todays churches, and just as infrequently addressed in Sunday school classes.