a person whose mind and loyalties are still open and unformed: naive and easily led, yet teachable, the raw material wisdom hopes to shape.
At its heart this word pictures a person who is open: a mind, a character, and a set of loyalties not yet closed around anything. That openness is the word's whole story. It is what lets such a person learn, and also what makes them easy to fool.
The book of Proverbs turns this one quality in different directions. It calls the open person its ideal student, the very one the book exists to shape ("to give shrewdness to the simple," Proverbs 1:4). It also warns what that same person becomes when the openness is never filled with wisdom: someone who believes anything, walks straight into danger, and is ruined by their own lack of formation. The Psalms take the word in a warmer direction still: the open person is the humble worshiper whom God guards and teaches.
So this is not a word for "stupid." A כְּסִיל is a settled dullard and a לֵץ is a hardened mocker beyond help, but the simple person is the one fool the Bible still speaks to directly, because they can still be changed. The danger is not low intelligence; it is being open to everything and committed to nothing, so that whoever speaks last, wisdom or folly, wins the door.
Nuances
Disputed
Within Proverbs, whether the simple person is morally neutral (an untrained youth) or already blameworthy for staying open to folly.
- contestedBasically neutral: an untutored, immature person rather than a wicked one. The priestly use in Ezekiel 45:20 for the unintentional sinner is taken as proof that the core sense is innocent.; Crawford H. Toy, A Critical and Exegetical Commentary on the Book of Proverbs (ICC, 1899); William McKane, Proverbs: A New Approach (OTL, 1970); Roland E. Murphy, Proverbs (WBC 22, 1998); Tremper Longman III, Proverbs (Baker Commentary on the Old Testament Wisdom and Psalms, 2006)
- contestedAlready culpable: refusing to embrace wisdom is itself an act of disloyalty, since the simple person is open to everything and committed to nothing, and neutrality is not a real option.; Bruce K. Waltke, The Book of Proverbs, Chapters 1-15 (NICOT, 2004)
- contestedUnformed rather than innocent or guilty: the openness is morally neutral in itself, and becomes blameworthy only if it closes around folly instead of wisdom.; Michael V. Fox, Proverbs 1-9 (Anchor Yale Bible 18A, 2000); Raymond C. Van Leeuwen, The Book of Proverbs, New Interpreter's Bible 5 (1997); Christine Roy Yoder, Proverbs (Abingdon Old Testament Commentaries, 2009)