“And the Lord added to the church daily those who were being saved.” Acts 2.47
All the saved people are found inside the church. No save people can be found outside of the church. The church of Jesus is like the ark in the days of Noah. All people who went into the ark were saved from the flood; anyone outside of the ark drowned in the waters of the flood.
In order to be saved from hell fire, mankind must submit himself to the word of God and become members of the church. John 10.9 The word church in its original form means “those who have been called from darkness into light.” Colossian’s 1.13
The church is essential; if you want to go to heaven you must be a member of the Lord's church. Eph 5.23