certainty
Found 7 times in the King James Bible
English Definition
to know (properly, to ascertain by seeing); used in a great variety of senses, figuratively, literally, euphemistically and inferentially (including observation, care, recognition; and causatively, instruction, designation, punishment, etc.)
Ω Greek (New Testament)
ἀσφάλεια
beṭach
properly, a place of refuge; abstract, safety, both the fact (security) and the feeling (trust); often (adverb with or without preposition) safely
"Certainty" translates different words in the original languages. In the Old Testament (Hebrew) it corresponds to H3045, while in the New Testament (Greek) it corresponds to G803. Context determines which original word is being used.