Revelation 1:4
John to the seven churches in Asia---Grace and peace be to you, from Him who is, and who was, and who is to come; and from the seven Spirits which are before his throne;
Revelation 1:8
I am the Alpha and the Omega, the beginning and the end, saith the Lord, who is, and who was, and who is to come, the Almighty.
Revelation 11:17
saying, We give thanks unto thee, O Lord God almighty, who art, and who wast, and who art to come; because thou hast assumed thy great power, and hast reigned.
Revelation 16:5
And I heard the angel of the waters saying, Righteous art Thou, O Lord, who art, and who ever wast; and who art holy, for Thou hast ordered these things: because they have shed the blood of saints and prophets,