'Certain' in the Bible

And certain of them had charge of the vessels of service; for by count were these brought in and by count were these taken out.

And he appointed certain of the Levites to minister before the ark of Jehovah, and to celebrate and to thank and praise Jehovah, the God of Israel:

Then there went certain persons, and told David how the men were served. And he sent to meet them; for the men were greatly ashamed. And the king said, Tarry at Jericho until your beards be grown, and then return.

Moreover David and the captains of the host set apart for the service certain of the sons of Asaph, and of Heman, and of Jeduthun, who should prophesy with harps, with psalteries, and with cymbals: and the number of them that did the work according to their service was: