In Proverbs 23:12, the call to apply your heart to instruction directly echoes the command in Proverbs 23:19 to be wise and guide your heart.

In Proverbs 23:26, 'give me your heart' parallels the command in Proverbs 23:19 to guide your heart in the way.

In Proverbs 4:10-23, the extended instruction to keep wisdom and guard the heart underlies the summary command in Proverbs 23:19.

In Proverbs 4:23, 'keep your heart' parallels the 'guide your heart' command in Proverbs 23:19.

In Proverbs 28:7, the son who keeps the law is understanding—similar to the wise son in Proverbs 23:19, though less direct.

In Deuteronomy 21:20, the rebellious son contrasts sharply with the wise son called for in Proverbs 23:19.

Luke 15:13 shows the prodigal son wasting wealth in wild living — a vivid example of the foolish behavior the father warns against here.