“Hear a just cause, O Lord; attend to my cry”, the psalmist cries (Ps 17:1). The expectation that God will act with justice is crystal clear in this psalm; the psalmist expects vindication from God (v.2), who will “show your steadfast love” (v.7), who will “rise up, confront [and] overthrow” the wicked (v.13). “As for me”, the psalmist concludes, “I shall behold your face in righteousness; when I awake I shall be satisfied, beholding your likeness” (v.15).
Other psalms make it clear that justice is integral to God’s being. “The word of the Lord is upright … he loves righteousness and justice” (Ps 33:4–5). “The Lord works vindication and justice for all who are oppressed” (Ps 103:6); “the Lord loves justice, he will not forsake his faithful ones” (Ps 37:28); “the Lord maintains the cause of the needy and executes justice for the poor” (Ps 140:12).
One psalmist provides a fulsome description of how this works in society, declaring that they place their trust in “the God of Jacob … who keeps faith forever, who executes justice for the oppressed, who gives food to the hungry … who sets the prisoners free [and] opens the eyes of the blind … [who] lifts up those who are bowed down … [who] watches over the strangers, upholds the orphan and the widow” (Ps 146:5–9). This resonates with other prophetic texts and with the mission that Jesus later undertook.
That God will act with justice is an expectation that is found again and again throughout the pages of Hebrew Scripture. The prophet Amos places justice and righteousness at the heart of God’s intentions for Israel, prioritising them over any ritual actions of worship (Amos 5:21–23). In like manner, the prophet Hosea declares that God “desires steadfast love and not sacrifice, the knowledge of God rather than burnt offerings” (Hos 6:6).
According to the narrative books recounting earlier stories, justice had been the key quality of the prophetic messages given to Israel over a number of centuries before these prophets. Moses and the elders he appointed had a responsibility to judge the people (Exod 18:13–27). This was continued by men and women designated as judges in the book of Judges.
Over time, the role of the prophet arose, as judges gave way to kings; the prophet was called to hold the king to account (for instance, Nathan at 2 Sam 12). This then expands so that the prophetic voice speaks truth to all the people, persistently calling out for justice. Amos sounds this central motif: “let justice roll down like waters, and righteousness like an ever-flowing stream” (Amos 5:24). Micah repeats and expands it in his powerful rhetorical question, “what does the Lord require of you but to do justice, and to love kindness, and to walk humbly with your God?” (Micah 6:8).
Praying that God’s ways of justice and righteousness may be evident in the king is a repeated motif in the psalms. “Give the king your justice, O God, and your righteousness to a king’s son; may he judge your people with righteousness and your poor with justice” (Ps 72:1–2). “Mighty King, lover of justice, you have established equity, you have executed justice and righteousness in Jacob” (Ps 99:4).
“Righteousness and justice are the foundation of your throne”, another psalmist sings (Ps 89:14); “happy are the people … who walk, O Lord, in the light of your countenance … who extol your righteousness” (Ps 86:15–16). Prayers for justice to be lived out in the society of the time are also found at Ps 10:17–18; 37:5–6; 106:3; and the whole of Psalm 112 offers a song in praise of “those who conduct their affairs with justice”, who exude the best of the character of God: “they are gracious, merciful, and righteous” (Ps 112:4).
The oracles placed at the start of the book of Isaiah sounds the importance of living with justice: “wash yourselves, make yourselves clean … cease to do good, learn to do good, seek justice, rescue the oppressed, defend the orphan, plead for the widow” (Isa 1:16–17). The powerful “song of the vineyard” (Isa 5:1–7) concludes with the wonderful Hebrew wordplay, which reinforces this theme: so, “he expected justice (mishpat) but saw bloodshed (mispach); righteousness (tsedakah) but heard a cry (seakah)” (5:7).
What follows is a searing prophetic denunciation of the ills of society: the excesses of a debaucherous elite, the oppressive state of the lowly (5:8–23). The prophet yearns for the coming of a royal child who will rule the nation “with justice and with righteousness from this time onward and forevermore” (Isa 9:6–7). A later prophet whose oracles are collected with those of Isaiah likewise looks for “my servant … my chosen … [who] will bring forth justice to the nations … he will faithfully bring forth justice … [he will] establish justice in the earth” (Isa 42:1–4). Again, the resonances with the later story of Jesus are evident to Christian readers.
A little later than Isaiah, the prophet Zephaniah declares that “the Lord is righteous, he does no wrong; every morning he renders his judgement, each dawn without fail” (Zeph 3:5). Prophets in exile repeat this vision. Jeremiah instructs the nation to “execute justice in the morning and deliver from the hand of the oppressor anyone who has been robbed” (Jer 21:12; 22:3; 33:15). Ezekiel advises that “if a man is righteous and does what is lawful and right … he shall surely live” (Ezek 18:5–9; 34:11–16). Zeph 3:5).
And in the last prophetic book (in the order familiar to Christians), the prophet Malachi asks, “where is the God of justice?”, and answers his own question with a description of “the messenger of the covenant” who will execute justice “like a refiner’s fore and like fuller’s soap … he will purify the descendants of Levi … until they present offerings to the Lord in righteousness” (Mal 2:17—3:4).
This prophetic cry continues into the New Testament, as justice is placed at the centre. Jesus calls for justice (Matt 23:23; Luke 11:42, 18:1–8)—at times, we find it rendered as “righteousness” in his sayings (Matt 5:1–12, 20; 6:33, 21:28–32). This, of course, is the way that it appears in the letters of Paul, where the righteousness of God is the action that we experience when God implements justice in our lives (Rom 3:21–26, 4:1–25; 2 Cor 5:16–21).
Both the manifesto for mission that Luke highlights at the start of the public activity of Jesus (Luke 4:18–21) and the climactic parable of the sheep and the goats that Matthew places at the end of the public teaching of Jesus (Matt 25:31–46) draw strongly from Old Testament insights. Both demonstrate the priority that Jesus gave to practical actions of support, care, and advocacy within ordinary life—precisely what justice is!
Jesus highlights the judgement executed by God (Matt 8:10–12; Luke 13:28–30) and told a number of parables of judgement—particularly those collected in Matthew’s Gospel (Matt 13:36–43, 47–50, 22:1–14, 24:44–25:46). These stories use the threat of divine judgement as a warning against sinful injustice and as a spur to righteous living. Underlying these warnings is the fundamental principle that God’s justice undergirds all (Matt 12:17–20; Luke 18:1–8).
“Hear a just cause, O Lord; attend to my cry”, the psalmist cries (Ps 17:1). The expectation that God will act with justice saturates the books of Hebrew Scriptures and flows on into the books of the New Covenant. Justice is at the heart of what we believe about God; justice is to mark the lives that we live by faith. May it be so.
An Informed Faith 