John's vision found in Revelation of Jesus "the First and the Last" standing in the midst of seven lampstands. Holding seven stars in His right hand, and a sharp two edged sword coming out of His mouth.
9 I, John, your brother and partner in the tribulation and the kingdom and the patient endurance that are in Jesus, was on the island called Patmos on account of the word of God and the testimony of Jesus.10 I was in the Spirit on the Lord's day, and I heard behind me a loud voice like a trumpet11 saying, “Write what you see in a book 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.”12 Then I turned to see the voice that was speaking to me, and on turning I saw seven golden lampstands,13 and in the midst of the lampstands one like a son of man, clothed with a long robe and with a golden sash around his chest.14 The hairs of his head were white, like white wool, like snow. His eyes were like a flame of fire,15 his feet were like burnished bronze, refined in a furnace, and his voice was like the roar of many waters.16 In his right hand he held seven stars, from his mouth came a sharp two-edged sword, and his face was like the sun shining in full strength.17 When I saw him, I fell at his feet as though dead. But he laid his right hand on me, saying, “Fear not, I am the first and the last,18 and the living one. I died, and behold I am alive forevermore, and I have the keys of Death and Hades.19 Write therefore the things that you have seen, those that are and those that are to take place after this.20 As for the mystery of the seven stars that you saw in my right hand, and the seven golden lampstands, the seven stars are the angels of the seven churches, and the seven lampstands are the seven churches.
Revelation 21
6 And he said to me, “It is done! I am the Alpha and the Omega, the beginning and the end. To the thirsty I will give from the spring of the water of life without payment.
Revelation 22
13 I am the Alpha and the Omega, the first and the last, the beginning and the end.”