'Certain' in the Bible

{Inasmuch as} you saw that a stone from the mountain was chiseled out [but] not by hands, and [that] it crushed the iron, the bronze, the clay, the silver and the gold, [thereby] the great God made known to the king what will be {in the future}, and the dream is certain and its explanation trustworthy."

Then they approached {and spoke with the king} concerning the edict of the king, "{Did you not sign an edict} that any person who would seek [anything] from any God or human within thirty days except from you, O king, would be thrown into {the lion pit}?" The king answered and said, "The matter [as you have just stated] is certain according to [the] law of [the] Medes and Persians which cannot be revoked."

"Then I desired to make certain concerning the fourth beast that was different from {all the others}--exceedingly terrifying, with its iron teeth and its claws of bronze; it devoured and crushed [and] stamped the remainder with its feet--

And I heard a certain holy one speaking, and a certain other holy one said to the specific one {who was speaking}, "{For how long} [is] the vision [concerning] the regular burnt offering, and the transgression [that] makes desolate, and [the] giving over [of the] sanctuary and [the] host to trampling?"