'Certain' in the Bible

The king spoke to Ashpenaz the master of his eunuchs, that he should bring in [certain] of the children of Israel, even of the seed royal and of the nobles;

Because you saw that a stone was cut out of the mountain without hands, and that it broke in pieces the iron, the brass, the clay, the silver, and the gold; the great God has made known to the king what shall happen hereafter: and the dream is certain, and its interpretation sure.

Therefore at that time certain Chaldeans came near, and brought accusation against the Jews.

There are certain Jews whom you have appointed over the affairs of the province of Babylon: Shadrach, Meshach, and Abednego; these men, O king, have not respected you. They don't serve your gods, nor worship the golden image which you have set up.

He commanded certain mighty men who were in his army to bind Shadrach, Meshach, and Abednego, [and] to cast them into the burning fiery furnace.

Then I heard a holy one speaking; and another holy one said to that certain one who spoke, How long shall be the vision [concerning] the continual [burnt offering], and the disobedience that makes desolate, to give both the sanctuary and the army to be trodden under foot?

I, Daniel, fainted, and was sick certain days; then I rose up, and did the king's business: and I wondered at the vision, but none understood it.