heart: Pro 1:5, Pro 9:9, 1Ki 3:6-12, Psa 119:97, Psa 119:100, Act 17:11, 2Pe 3:18 the mouth: Pro 12:23, Isa 30:10, Isa 44:20, Hos 12:1 Reciprocal: Pro 8:9 - General Pro 15:32 - getteth understanding Pro 17:24 - before Pro 18:15 - General Pro 19:28 - the Pro 21:11 - when the wise Eze 13:3 - foolish