John_5-24: Verily, verily, I say unto you, He that heareth my word, and believeth on him that sent me, hath everlasting life, and shall not come into condemnation; but is passed from death unto life

Memorise:

For if we believe that Jesus died and rose again, even so them also which sleep in Jesus will God bring with him.

1 Thessalonians 4:14

Read: 1 Corinthians 15:12-19

12  Now if Christ be preached that he rose from the dead, how say some among you that there is no resurrection of the dead?

13  But if there be no resurrection of the dead, then is Christ not risen:

14  And if Christ be not risen, then is our preaching vain, and your faith is also vain.

15  Yea, and we are found false witnesses of God; because we have testified of God that he raised up Christ: whom he raised not…