'Art' in the Bible

And it came to pass, when Joshua was by Jericho, that he lifted up his eyes and looked, and, behold, there stood a man over against him with his sword drawn in his hand: and Joshua went unto him, and said unto him, Art thou for us, or for our adversaries?

And the Prince of Jehovah's host saith unto Joshua, 'Cast off thy shoe from off thy foot, for the place on which thou art standing is holy;' and Joshua doth so;

And Jehovah saith unto Joshua, 'Rise for thee, why is this? -- thou art falling on thy face?

Rise, sanctify the people, and thou hast said, Sanctify yourselves for to-morrow; for thus said Jehovah, God of Israel, A devoted thing is in thy midst, O Israel, thou art not able to stand before thine enemies till your turning aside of the devoted thing out of your midst;

Now Joshua was old and stricken in years; and the LORD said unto him, Thou art old and stricken in years, and there remaineth yet very much land to be possessed.

And Joshua saith unto them, 'If thou art a numerous people, go up for thee to the forest, then thou hast prepared for thee there, in the land of the Perizzite, and of the Rephaim, when mount Ephraim hath been narrow for thee.'

And Joshua spake unto the house of Joseph, even to Ephraim and to Manasseh, saying, Thou art a great people, and hast great power: thou shalt not have one lot only: