Omniscience comes from two Latin words:
1. “omni” means “all” or “complete”
2. “sciens” which means “to have knowledge”, “to be aware”
The term “omniscience” is not used in the KJV Bible.
“God understandeth the way thereof, and he knoweth the place thereof. For he looketh to the ends of the earth, [and] seeth under the whole heaven;” (Job 28:23-24)
“Remember the former things of old: for I [am] God, and [there is] none else; [I am] God, and [there is] none like me,” (Isaiah 46:9)