August 15, 2021 Twelfth Sunday after Pentecost, Tone 3; The Dormition of Our Most Holy Lady, the Mother of God and Ever-Virgin Mary; Kievan-Caves Icon of the Mother of God (1073), and Zaranytsia; Feast of the Mother of God. Mother of God. Holy day of obligation. 1 Corinthians 15:1-11; Philippians 2:5-11; Matthew 19:16-26; Luke 10:38-42, 11:27-28