The Bible teaches that humans have a two dimensional existence. One dimension is that we have a natural body, a living, breathing creature that is capable of carrying out an earthly existence. This natural body is temporary, has a finite existence, and will return to the dust of the earth. The second and invisible dimension of a human being is the existence of a spiritual body. This invisible spiritual body, or what is commonly called the soul, will live forever. The eternal disposition of our soul or spiritual body is completely determined by our conduct during our stay on this earth in our natural body. There is a reward for righteousness and a penalty for sin. According to the Bible, the righteous will have an eternal existence in Heaven with God and sinners to an everlasting punishment in Hell with Satan.
And this is the record, that God hath given to us eternal life, and this life is in his Son. He that hath the Son hath life; and he that hath not the Son of God hath not life. These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God. I John 5:11-13
Rejoice, and be exceeding glad: for great is your reward in heaven: Matthew 5:12
And if thy hand offend thee, cut it off: it is better for thee to enter into life maimed, than having two hands to go into hell, into the fire that never shall be quenched: Where their worm dieth not, and the fire is not quenched. And if thy foot offend thee, cut it off: it is better for thee to enter halt into life, than having two feet to be cast into hell, into the fire that never shall be quenched: Where their worm dieth not, and the fire is not quenched. Mark 9:43-46
For what is your life? It is even a vapour, that appeareth for a little time, and then vanisheth away. James 4:14
But the fearful, and unbelieving, and the abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all liars, shall have their part in the lake which burneth with fire and brimstone: which is the second death. Revelation 21:8