In the icon, St. John the Baptist is represented with two large wings because he is the messenger of the Messiah. It is about this man that Scripture says “I send my messenger ahead of you to prepare the way before you.” (Mt. 11:10) John makes the gesture of the preacher with his right hand which proclaims the message of his preaching. “Reform you lives! The reign of God is at hand.” 1
1 Come Bless The Lord, GOD WITH US, Catechetical Series, 1976.