John Lightfoot on Luke 10:31

[When he saw him, he passed by on the other side.] And why, I pray, priest and Levite, do ye thus pass by a man in such a miserable condition? Was he not an Israelite? It is true, ye had learned out of your own schools not to succour a Gentile, no, nor a keeper of sheep, though he was an Israelite: now was this wounded man such a one? or did ye think ye should have contracted some pollution by touching one half dead? The word passed by on the other side, seems to hint as if they passed by him, keeping their distance from him: let them tell the reason themselves. For my part, I would impute it wholly to the mere want of charity.