At the 2019 graduation ceremony at a local high school, 608 students prepared to receive their diplomas. The principal began by asking students to stand when he read the name of the country where they were born: Afghanistan, Bolivia, Bosnia. . . . The principal kept going until he’d named sixty countries and every student was standing and cheering together. Sixty countries, one high school. The beauty of unity amid diversity was a powerful image that celebrated something near to God’s heart, people living together in unity. We read an encouragement for unity among God’s people in Psalm 133, a psalm of ascent—a song sung as people entered Jerusalem for annual celebrations. The psalm reminded the people of the benefits of living harmoniously (v. 1) despite differences that could cause division. In vivid imagery, unity is described as refreshing dew (v. 3) and oil—used to anoint priests (Exodus 29:7)—“running down” the head, beard and clothing of a priest (v. 2). Together, these images point to the reality that in unity God’s blessings flow so lavishly they can’t be contained. For believers in Jesus, despite differences such as ethnicity, nationality or age, there is a deeper unity in the Spirit (Ephesians 4:3). When we stand together and celebrate that common bond as Christ leads us, we can embrace our God-given differences and celebrate the source of true unity.