The Hebrew word n'kochah means uprightness, equity, or right things. It describes that which is straight, honest, and morally correct. The word is used to characterize speech, conduct, and judgment that align with truth and justice. It stands in contrast to what is crooked, deceptive, or perverse.
In the wisdom tradition of the Old Testament, n'kochah describes the kind of speech and knowledge that God values. The words of wisdom are right (n'kochah) to those who find knowledge (Proverbs 8:9). Isaiah uses the term to rebuke Israel's rejection of straight, honest prophecy in favor of pleasant deceptions. Theologically, the concept teaches that God's truth is inherently straightforward — it does not twist or deceive. Those who seek wisdom will find that God's words are plain and right to the understanding heart.