'Certain' in the Bible

And a certain woman cast an upper millstone upon Abimelech's head, and brake his skull.

And there was a certain man of Zorah, of the family of the Danites, whose name was Manoah; and his wife was barren, and bare not.

And it came to pass in those days, when there was no king in Israel, that there was a certain Levite sojourning on the farther side of the hill-country of Ephraim, who took to him a concubine out of Beth-lehem-judah.

As they were making their hearts merry, behold, the men of the city, certain base fellows, beset the house round about, beating at the door; and they spake to the master of the house, the old man, saying, Bring forth the man that came into thy house, that we may know him.