Was, and is, and is to come
3 times in the book of Revelation we get this phrase - “Who was, and is, and is to come”.
“Grace and peace to you from him who is, and who was, and who is to come, and from the seven spirits before his throne” (Revelation 1:4)
“‘I am the Alpha and the Omega,’ says the Lord God, ‘who is, and who was, and who is to come, the Almighty.’” (Revelation 1:8)