While our contemporary understanding of righteousness tends to focus on moral virtue and ethical behavior, such a limited perspective hardly captures the full scope of what the term meant in the context of the Old Testament. In its original biblical sense, righteousness was primarily about *fulfilling the duties and responsibilities* that arise within a relationship between two parties. Under the Mosaic covenant, the special relationship between Israel and God was governed by the Law of Moses. A person’s righteousness was assessed based on how well they adhered to this Law, which provided the framework for their relationship with YHWH. Obeying the Law—many of which were not necessarily moral commandments—meant that they remained in right standing before God. Conversely, breaking God's Law was seen as a betrayal of that relationship with YHWH; this breach was considered sin. To better understand that the biblical idea of righteousness is rooted more in relationship than in morality alone, let’s look at two illustrative examples. In Genesis 38, we find the story of Judah and Tamar. Tamar was Judah’s daughter-in-law, first married to his son Er, who was struck down by God (Genesis 38:7). She then married Onan, Judah’s second son, who also faced divine judgment (38:10). The only remaining son, Shelah, was too young to marry her, so Judah promised Tamar that she would marry him when he grew up (38:11). But Judah failed to keep this promise. In her desperation, Tamar devised a bold plan: she disguised herself as a prostitute at a nearby town, and Judah, not recognizing her, engaged with her. Without paying her, he left behind his signet ring, staff, and bracelets as security, which Tamar kept as evidence. Later, Judah learned Tamar was pregnant and, angered, demanded she be punished. When she produced the signet, staff, and bracelets, Judah recognized his own possessions and acknowledged his mistake. He then said, “She is more righteous than I,” because she had maintained her part of the relationship, whereas he had broken his promise. If righteousness were judged solely on moral purity, neither Judah nor Tamar would qualify. But when righteousness is understood as faithfulness to a relational obligation, their actions take on a deeper meaning. Tamar’s righteousness was rooted not in her act of deception but in her commitment to uphold her part of the relationship, while Judah’s failure was in neglecting his promises. This story demonstrates that in the biblical worldview, righteousness is fundamentally about honoring and fulfilling relational commitments, not merely about moral perfection.