'Certain' in the Bible

Now there cried a certain woman of the wives of the sons of the prophets unto Elisha, saying, Thy servant my husband is dead; and thou knowest that thy servant did fear the LORD: and the creditor is come to take unto him my two sons to be bondmen.

Then he went back to the man of God, with all his train, and, taking his place before him, said, Now I am certain that there is no God in all the earth, but only in Israel: now then, take an offering from me.

Then a certain one said, "Please be prepared and go with your servants," and he said, "I will go."

When these who had the skin disease came to the edge of the camp, they went into a certain tent and they ate, drank, and took from there silver and gold and clothes. Then they went and hid [them], then returned and came to another tent, and they took from there and went and hid [them].

And when the king asked the woman, she told him. So the king appointed unto her a certain officer, saying, Restore all that was hers, and all the fruits of the field since the day that she left the land, even until now.

You may be certain that nothing which the Lord has said about the family of Ahab will be without effect; for the Lord has done what he said by his servant Elijah.

Then Jehoiada the priest took a certain chest and bored a hole in its lid, and he put it beside the altar to the right as a man enters into the temple of Yahweh; then the priests who were keepers of the threshold would put there all of the money brought into the temple.

and out of the city he hath taken a certain eunuch who is appointed over the men of war, and five men of those seeing the king's face who have been found in the city, and the head scribe of the host, who mustereth the people of the land, and sixty men of the people of the land who are found in the city,