John 8:51

verily, verily, I say unto you, whoever observes my doctrine, shall never die.

John 11:25-26

Jesus said to her, I am the resurrection, and the life: he that believeth in me shall live even though he were dead:

Luke 2:26

to him it was revealed by the holy spirit, that he should not die till he had seen the Messiah of the Lord.

John 3:15-16

that whosoever believeth in him, should not perish, but have eternal life.

John 5:24

I declare unto you, he that heareth my doctrine, and believeth on him that sent me, hath everlasting life, and shall not come under condemnation; but is passed from death unto life.

John 8:55

yet ye have not known him, but I know him: and if I should say, I know him not, I should be a lyar like you: but I know him, and observe his commands.

John 15:20

remember what I told you, "the servant is not greater than his master." if they have persecuted me, they will also persecute you: if they have been spies upon my discourse, they will be so upon yours.

John 6:50

but this is the bread which came down from heaven, that he who eats thereof should not die.

John 8:12

Jesus then having reassumed his discourse, said to them, I am the light of the world: he that followeth me, shall not walk in darkness, but shall have the light of life.

Hebrews 11:5

By faith Enoch was translated that he might avoid dying; and he could not be found, because God had translated him: for 'tis recorded, that before his translation he was approved by God.

Treasury of Scripture Knowledge

Summary

Verily, verily, I say unto you, If a man keep my saying, he shall never see death.

Bible References

If

John 3:15
that whosoever believeth in him, should not perish, but have eternal life.
John 5:24
I declare unto you, he that heareth my doctrine, and believeth on him that sent me, hath everlasting life, and shall not come under condemnation; but is passed from death unto life.
John 6:50
but this is the bread which came down from heaven, that he who eats thereof should not die.
John 11:25
Jesus said to her, I am the resurrection, and the life: he that believeth in me shall live even though he were dead:

Keep

John 8:55
yet ye have not known him, but I know him: and if I should say, I know him not, I should be a lyar like you: but I know him, and observe his commands.
John 15:20
remember what I told you, "the servant is not greater than his master." if they have persecuted me, they will also persecute you: if they have been spies upon my discourse, they will be so upon yours.