The night sky, once filled with countless stars, was suddenly enveloped in an incredible brightness, revealing a multitude of heavenly beings, as a triumphant song echoed across the slumbering earth, announcing the dawn of a new chapter in humanity's saga: "Glory to God in the highest, and on earth peace, goodwill toward men!" In the celestial realm, a solemn worship service unfolded, reminiscent of the rituals performed in the temple of Jerusalem. As the offering was presented on the altar, sacred melodies resounded in three distinct waves, accompanied by the sound of the priests' silver trumpets, forming a perpetual chant of the "Trisagion." The angelic anthem mirrored this structure, capturing the essence of heaven, earth, and the human spirit in its three key phrases. In all of the Old Testament narrative, only once before had a mortal been afforded the privilege of hearing the heavenly chorus. This was when the prophet Isaiah, in a divine vision, glimpsed the glory of the Lord of hosts, surrounded by seraphim who ceaselessly proclaimed, "Holy, Holy, Holy is the Lord of hosts! The whole earth is full of His glory" (Isaiah 6:1-3). At that moment, the thresholds shook at the sound of their thunderous proclamations, and the prophet's heart quaked in fear. Now, the angelic melody that filled the simple shepherds with bliss and serenity brought them joy, comfort, and peace.