Proverbs 12:23 is a near-identical parallel: the prudent conceal knowledge while fools broadcast folly.

Proverbs 15:2 also contrasts wise use of knowledge with fools pouring out folly — expanding on the same prudent/fool dynamic.

Proverbs 14:33 contrasts wisdom resting in the understanding heart with folly making itself known, directly paralleling the prudent vs fool.

Proverbs 15:28 contrasts righteous pondering answers with wicked pouring evil, paralleling the prudent's knowledge vs fool's flaunting folly.

1 Samuel 25:10 shows Nabal's foolish, rash response—a vivid example of the fool who proclaims folly.

1 Samuel 25:11 continues Nabal's foolish refusal—exemplifies the fool's heart proclaiming folly.

1 Samuel 25:17 describes Nabal as worthless and unreachable—a direct illustration of the fool in Proverbs 13:16.

Ecclesiastes 10:3 shows fools openly revealing their lack of sense, echoing how a fool flaunts folly in Proverbs 13:16.