He that winketh with the eye causeth sorrow: but a prating fool shall fall.
He that winketh with the eye causeth sorrow. "Winketh-namely, with malicious intent (Proverbs 6:13, note). Feigning kindliness to his neighbour, but all the while giving a secret hint or sign to his accomplices to cheat or rob him.
But a prating fool shall fall - Hebrew, 'a fool in lips' (cf. Proverbs 10:8). The connection of the clauses is, To speak feignedly, and to speak rashly, are both alike dangerous: to do the former hurts others, to do the latter hurts one's self. When we avoid cunning and feigned speaking, we are not to run into the opposite extreme of prating folly.