Revelation 1:9–18 (CSB):

9 I, John, your brother and partner in the affliction, kingdom, and endurance that are in Jesus, was on the island called Patmos because of the word of God and the testimony of Jesus. 10 I was in the Spirit on the Lord’s day, and I heard a loud voice behind me like a trumpet 11 saying, “Write on a scroll what you see and send it to the seven churches: Ephesus, Smyrna, Pergamum, Thyatira, Sardis, Philadelphia, and Laodicea.”
12 Then I turned to see whose voice it was that spoke to me. When I turned I saw seven golden lampstands, 13 and among the lampstands was one like the Son of Man, dressed in a robe and with a golden sash wrapped around his chest. 14 The hair of his head was white as wool—white as snow—and his eyes like a fiery flame. 15 His feet were like fine full strength.
17 When I saw him, I fell at his feet like a dead man. He laid his right hand on me and said, “Don’t be afraid. I am the First and the Last, 18 and the Living One. I was dead, but look—I am alive forever and ever, and I hold the keys of death and Hades.