"O all-praised John, and universal Apostle..."

St. John the Forerunner (source)

  
O all-praised John, and universal Apostle, the good news of Gabriel, and the root from the barren womb, and the most-beautiful adornment of the desert, and true friend of Christ the Bridegroom: entreat Him, that He might have mercy on our souls.
-Idiomelon from the feast of the Nativity of St. John

(source)
  

Through the prayers of our Holy Fathers, Lord Jesus Christ our God, have mercy on us and save us! Amen!