'Knewest' in the Bible

He says to him, Out of thy mouth will I judge thee, wicked bondman: thou knewest that I am a harsh man, taking up what I have not laid down and reaping what I have not sowed.

and shall lay thee even with the ground, and thy children in thee; and shall not leave in thee a stone upon a stone: because thou knewest not the season of thy visitation.