Revelation 2:11

He that has an ear, let him hear what the Spirit says to the assemblies. He that overcomes shall in no wise be injured of the second death.

Revelation 2:7

He that has an ear, let him hear what the Spirit says to the assemblies. To him that overcomes, I will give to him to eat of the tree of life which is in the paradise of God.

Revelation 20:6

Blessed and holy he who has part in the first resurrection: over these the second death has no power; but they shall be priests of God and of the Christ, and shall reign with him a thousand years.

Revelation 20:14

and death and hades were cast into the lake of fire. This is the second death, even the lake of fire.

Revelation 21:8

But to the fearful and unbelieving, and sinners, and those who make themselves abominable, and murderers, and fornicators, and sorcerers, and idolaters, and all liars, their part is in the lake which burns with fire and brimstone; which is the second death.

Revelation 2:17

He that has an ear, let him hear what the Spirit says to the assemblies. To him that overcomes, to him will I give of the hidden manna; and I will give to him a white stone, and on the stone a new name written, which no one knows but he that receives it.

Revelation 13:9

If any one has an ear, let him hear.

Treasury of Scripture Knowledge

Summary

He that hath an ear, let him hear what the Spirit saith unto the churches; He that overcometh shall not be hurt of the second death.

Bible References

That hath

Revelation 2:7
He that has an ear, let him hear what the Spirit says to the assemblies. To him that overcomes, I will give to him to eat of the tree of life which is in the paradise of God.
Revelation 13:9
If any one has an ear, let him hear.

The second

Revelation 20:6
Blessed and holy he who has part in the first resurrection: over these the second death has no power; but they shall be priests of God and of the Christ, and shall reign with him a thousand years.
Revelation 21:8
But to the fearful and unbelieving, and sinners, and those who make themselves abominable, and murderers, and fornicators, and sorcerers, and idolaters, and all liars, their part is in the lake which burns with fire and brimstone; which is the second death.

General references

Isaiah 28:23
Give ear, and hear my voice; hearken, and hear my speech.
Matthew 11:15
He that has ears to hear, let him hear.
Matthew 13:9
He that has ears, let him hear.
Mark 4:23
If any one have ears to hear, let him hear.
Mark 7:16
If any one have ears to hear, let him hear.
1 Corinthians 3:14
If the work of any one which he has built upon the foundation shall abide, he shall receive a reward.
Hebrews 10:15
And the Holy Spirit also bears us witness of it; for after what was said:
Revelation 3:22
He that has an ear, let him hear what the Spirit says to the assemblies.
Revelation 13:9
If any one has an ear, let him hear.