There are three words that are commonly used to describe God; they all begin with "omni."

Omnipresent: Present everywhere simultaneously

Omnipotent: Unlimited power or authority

Omniscient: Total knowledge; knowing everything

The prefix "omni" means all, so the three "omni" words that reveal God's character and nature, succinctly tell us that

God is all present,
             all powerful, and
             all knowing.

God's "omni" nature surely provides something us something to ponder.

(In some translations of the Bible, the word omnipotent is found in Revelation 19:6, but most versions use the word "almighty" instead.  Almighty, in referring to God's character, occurs hundreds of times in the Bible.  The other two "omni" words are not directly found in the Bible, but are implied.  Omnipresent is described in Jeremiah 23:23-24 and Proverbs 15:3, among others, while  Omniscient is described in Matthew 6:32, Romans 8:27, 1 John 3:20 and others.)

[Also see "The Implications of Omnipresence" and "The Implications of Omniscience" for more thoughts on this.]