Revelation 1:8

I am Alpha and Omega, says the Lord God, who is and who was, and who is coming, the Almighty.

Revelation 22:13

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

1 Timothy 3:16

And assuredly great is the mystery of godliness; Who is manifested in the flesh, was justified in the spirit, was seen of angels, was preached among the Gentiles, was believed on in the world, was taken up in glory.

Matthew 25:34

Then the King will say to those on His right, Come, ye blessed of my Father, inherit the kingdom which has been prepared for you from the foundation of the world.

Matthew 27:37

And they placed over His head, His accusation written, THIS IS JESUS THE KING OF THE JEWS.

Revelation 1:11

saying, Write what you are seeing in a book, and send it to the seven churches; unto Ephesus, and unto Smyrna, and unto Pergamum, and unto Thyatira, and unto Sardis, and unto Philadelphia, and unto Laodicea.

Revelation 1:17-18

And when I saw him, I fell at his feet like a dead man; and he laid his right hand on me, saying, Fear not; I am the first and the last:

Revelation 2:8

And to the angel of the church in Smyrna write; The first and the last, who was dead, and is alive, says these things:

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 Alpha and Omega, says the Lord God, who is and who was, and who is coming, the Almighty.
Revelation 2:8
And to the angel of the church in Smyrna write; The first and the last, who was dead, and is alive, says these things:
Revelation 22:13
I am Alpha and Omega, the first and the last, the beginning and the end.

Beside

1 Timothy 3:16
And assuredly great is the mystery of godliness; Who is manifested in the flesh, was justified in the spirit, was seen of angels, was preached among the Gentiles, was believed on in the world, was taken up in glory.

General references

Hebrews 13:8
Jesus Christ the same yesterday, and to-day, and forever.
James 2:19
Do you believe that there is one God? you do well: the demons also believe and tremble.
Revelation 22:13
I am Alpha and Omega, the first and the last, the beginning and the end.