Revelation 1:8

"I am the Alpha and the Omega," says the Lord God, "who is, and who was, and who is to come, the Almighty."

Revelation 22:13

I am the Alpha and the Omega, the first and the last, the beginning and the end."

1 Timothy 3:16

By common confession, great is the mystery of godliness: he was revealed in the flesh, was vindicated in the Spirit, seen by angels, preached among the nations, believed on in the world, taken up in glory.

Matthew 25:34

Then the King will say to those on his right hand, 'Come, you blessed of my Father, inherit the kingdom prepared for you from the foundation of the world:

Matthew 27:37

And they put up over his head the charge written against him: THIS IS JESUS THE KING OF THE JEWS.

Revelation 1:11

saying, "Write in a book what you see, and send it to the seven churches: to Ephesus and to Smyrna and to Pergamum and to Thyatira and to Sardis and to Philadelphia and to Laodicea."

Revelation 1:17-18

And when I saw him, I fell at his feet as though dead. But he laid his right hand on me, saying, "Do not be afraid. I am the First and the Last,

Revelation 2:8

"And to the angel of the church in Smyrna write: 'These are the words of the First and the Last, who died, and came to life:

Treasury of Scripture Knowledge

Summary

Thus saith the LORD the King of Israel, and his redeemer the LORD of hosts; I am the first, and I am the last; and beside me there is no God.

Bible References

I am the first

Revelation 1:8
"I am the Alpha and the Omega," says the Lord God, "who is, and who was, and who is to come, the Almighty."
Revelation 2:8
"And to the angel of the church in Smyrna write: 'These are the words of the First and the Last, who died, and came to life:
Revelation 22:13
I am the Alpha and the Omega, the first and the last, the beginning and the end."

Beside

1 Timothy 3:16
By common confession, great is the mystery of godliness: he was revealed in the flesh, was vindicated in the Spirit, seen by angels, preached among the nations, believed on in the world, taken up in glory.

General references

Hebrews 13:8
Jesus Christ is the same yesterday and today and forever.
James 2:19
You believe that God is one; you do well. Even the demons believeand shudder.
Revelation 22:13
I am the Alpha and the Omega, the first and the last, the beginning and the end."