Omni, means “all,” while scient, although not a common word, means “knowing, skillful, aware, knowledgeable.” Therefore, omniscient means total knowledge or knowing everything. God is omniscient.
The noun form of omniscient is omniscience.
A lifelong student of the Bible, Peter DeHaan, PhD, wrote the 700-page website ABibleADay.com to encourage people to explore the Bible. His main blog and numerous books urge Christians to push past the status quo and reconsider how they practice their faith in every area of their lives.