'Art' in the Bible

And Moses said unto him, Art thou jealous for my sake? would that all Jehovah's people were prophets, that Jehovah would put his Spirit upon them!

and they will tell it to the inhabitants of this land. They have heard that thou Jehovah art in the midst of this people; for thou Jehovah art seen face to face, and thy cloud standeth over them, and thou goest before them, in a pillar of cloud by day, and in a pillar of fire by night.

Woe to thee, Moab! Thou art undone, O people of Chemosh: He hath given his sons as fugitives, And his daughters into captivity, Unto Sihon king of the Amorites.