The Bible shows us that there are two flocks of Christians who will go into the eternal kingdom with Christ. There is the little flock and the large flock.
The bulk of the ministry of Jesus Christ and the apostles was targetted towards the little flock as it is the aim of Jesus Christ that His people become perfect, and the little flock are those who achieve perfection in this age.
Both flocks will receive salvation, but there are some distinct differences between the two flocks, and we should all aspire to be part of the little flock.
This podcast gives some insight into who the two flocks are and what we need to know and do to be part of His little flock.