God Triune in the Holy Bible

"This view is not a little countenance by the fact that in the New Testament, the name Jehovah or its equivalent occurs only in the Apocalypse, a book which still points to the future of Christ’s Kingdom.   There, indeed, the name undoubtedly appears in the circumlocution ‘Who is and was and comes’ (Revelation 1:4 & 1:8 & 4:8).   But even there, in and after chapter 11:17, according to the best manuscripts, the predicate Ho Erchomenos, ‘Who comes’ – is dropped after the ‘was’ and ‘is.’   Because ‘The future of God’s Kingdom had become present; "The Coming" had come’ [Hengstenberg’s Commentary on Revelation]."