18 There are three things which are too wonderful for me, Yea, four which I know not: 19 The way of an eagle in the air; The way of a serpent upon a rock; The way of a ship in the midst of the sea; And the way of a man with a maiden. 20 So is the way of an adulterous woman; She eateth, and wipeth her mouth, And saith, I have done no wickedness.

Matthew Henry's Commentary on Proverbs 30:18-20

Commentary on Proverbs 30:18-20

(Read Proverbs 30:18-20)

Four things cannot be fully known. The kingdom of nature is full of marvels. The fourth is a mystery of iniquity; the cursed arts by which a vile seducer gains the affections of a female; and the arts which a vile woman uses to conceal her wickedness.