Proverbs 15:7 (NKJV) — 7 The lips of the wise disperse knowledge, But the heart of the fool does not do so.
Wise lips, foolish hearts. As Jesus taught, it is from the abundance of the heart that the mouth speaks (Matthew 12:34). The lips of the wise disperse knowledge because knowledge is in their hearts. But the heart of the fool is void of knowledge; therefore his lips cannot produce it. A wise heart and foolish lips are not companions, nor are a foolish heart and wise lips.