in the right: the person, ruler, or God whose conduct and claim match what is right and so stand up when tested
At its core this word names someone who is in the right. That covers a person whose life lines up with what God requires, an innocent party whose case is sound, a king who rules as he should, and God himself, who is always in the right. The English word "righteous" stretches across all of these, which is why one word holds them together.
The word lives most at home in two settings. One is the law court: the person in the right is the one a fair hearing will clear, set against the guilty party who should lose. The other is the contrast that runs through the Psalms and Proverbs, where the righteous person is set against the wicked as two ways of living that lead to two different ends. These are not separate words but the same idea seen from different angles, since to be in the right is already to have a claim that an honest judge will uphold.
When the word is said of God, it claims that he is wholly in the right in all he does, including his judgments, so that even his people can confess he is just when he punishes them. When it is said of a king, it points to a ruler who governs as a true and rightful king should, defending the weak rather than exploiting them. The same core runs through every use: matching what is right, and so being upheld.
Nuances
Disputed
Scholars disagree over what makes a person or God a tsaddiq: whether being in the right is fundamentally faithfulness to the demands of a relationship, or conformity to a standard of what is right that is tested, often in a law court.
- contestedForensic and norm-based: to be in the right is to match a real standard of what is right, with the law court as the word's natural home, so God's righteousness can include just judgment on his own people; Mark A. Seifrid, "Righteousness Language in the Hebrew Scriptures and Early Judaism," in Justification and Variegated Nomism, vol. 1 (Tübingen: Mohr Siebeck, 2001), 415-442; Charles Lee Irons, The Righteousness of God, WUNT II/386 (Tübingen: Mohr Siebeck, 2015); Stephen Westerholm, Perspectives Old and New on Paul (Grand Rapids: Eerdmans, 2004)
- contestedRelational: to be in the right is to fulfill the demands of a relationship, so that the relationship itself is the measure and God's righteousness is by definition saving rather than punitive; Hermann Cremer, Die paulinische Rechtfertigungslehre im Zusammenhange ihrer geschichtlichen Voraussetzungen (Gütersloh: Bertelsmann, 1899); Gerhard von Rad, Old Testament Theology, trans. D. M. G. Stalker (Edinburgh: Oliver & Boyd, 1962), 1:370-383; Klaus Koch, "צדק ṣdq gemeinschaftstreu/heilvoll sein," in Theologisches Handwörterbuch zum Alten Testament, vol. 2 (München: Kaiser, 1976), cols. 507-530