'Doth' in the Bible

What doth it profit, my brethren, if a man say he hath faith, but have not works? can that faith save him?

and one of you say unto them, Go in peace, be ye warmed and filled; and yet ye give them not the things needful to the body; what doth it profit?

Doth the fountain send forth from the same opening sweet water and bitter?

Or think ye that the scripture speaketh in vain? Doth the spirit which he made to dwell in us long unto envying?

Ye have condemned, ye have killed the righteous one ; he doth not resist you.