'Certain' in the Bible

only know for certain that if ye put me to death, ye shall surely bring innocent blood upon yourselves, and upon this city, and upon the inhabitants thereof; for of a truth Jehovah hath sent me unto you to speak all these words in your ears.

And there rose up certain of the elders of the land and spoke to all the congregation of the people, saying,

But Nebuzar-adan the captain of the body-guard left certain of the people, the poor who had nothing, in the land of Judah, and gave them vineyards and fields at the same time.