Strongs Number: G3801

Greek Word
ὁ ὢν καί ὁ ἦν καί ὁ ἐρχόμενος
ho ōn ho ēn ho erchomenos
ho own ho ane ho er-khom'-enos
Part of Speech
Strongs Definition

the one being and the one that was and the one coming that is the Eternal as a divine epithet of Christ. (Each and (G2532) was ommited from the phrase because of limited space.)

Thayers Definition

1. He who is, and was, and is coming

A phrase combining G3588 with the present participle and imperfect of G1510 and the present participle of G2064 by means of G2532
Bible Usage
which art (is was) and (which) wast (is was) and art (is) to come (shalt be).