G3801
Greek
ὁ ὢν καί ὁ ἦν καί ὁ ἐρχόμενος
ho ṑn kaí ho ēn kaí ho erchómenos
the one being and the one that was and the one coming, i.e. the Eternal, as a divine epithet of Christ
KJV Translations of G3801
which art (is, was), and (which) wast (is, was), and art (is) to come (shalt be)