Many Christians believe that only Christians will be going to heaven. They base this belief through Christian doctrine. Christian doctrine teaches that Jesus came to give life to those who believe. Are the believers those who believe in Jesus Christ or those who do the will of God through the Holy Spirit in the heart? The Holy Spirit is life unto God. The scriptures give understanding.
And grieve not the Holy Spirit of God, whereby ye are sealed unto the day of redemption.
The scriptures warn the true believers, those who have the Holy Spirit in their heart, not to deny the guidance of the Holy spirit in their daily lives.