The answer is: Because of the judgments of the Lord

Psalm 48:11 - David praises God's righteous judgments, inviting the daughters of Judah to rejoice. Their gladness is tied to divine justice and protection, emphasizing God's faithfulness. Interestingly, this theme resonates throughout Scripture, as seen in Jeremiah 31:7-8, where restoration brings joy to Judah's descendants after exile.

David's invitation to the daughters of Judah to rejoice highlights a beautiful and deep theme throughout the Scriptures: the joy that springs from divine justice and faithfulness. When David speaks in Psalm 48:11 about the judgments of the Lord, he's not merely referencing a legalistic idea but rather celebrating how those judgments reflect God's commitment to righteousness, order, and protection for His people. This theme resonates well beyond David's reign.

Consider, for instance, Nehemiah 8:10, which says, “The joy of the Lord is your strength.” When the people returned from exile, they found joy in God’s renewed covenant with them. They lit the candles of hope and thanksgiving, echoing David's call for gladness, illuminating the power of divine love and faithfulness over their hardship. The backdrop of restoration plays an instrumental role in their joy, meaning the underlying context of challenge fuels the exuberance of joy in reminiscing the faith over turmoil.

Interestingly, a poetically fun crossover exists in how Judah and joy represent turns in emotional history. As the joyous noises rang across valleys and mountains in ancient worship, the history tells us that tribe leaders would display vivid tapestries of jubilant celebrations whenever justice prevailed, solidifying the joy in contrast to the silent despair of exile.

In sum, when we dive into these moments, we see not just about historic glory but the universal themes of faith, justice, grief, and rejoicing. It reminds us that while challenges can weigh heavy, there’s a superstrength found in sharing joy and celebrating divine providence together through every season of life.