The following are the thoughts of Archbishop Demetrios, head of Greek Orthodox Archdiocese of America, from his 2012 encyclical for the Nativity:
The joy and assurance that we have in our communion with God on this holy feast engenders within our hearts an enduring hope. Our joy in the fulfillment of His divine plan for our salvation and our assurance through our faith in the truth of the Gospel, give us a firm hope in His promises of eternal life, for the complete restoration of our fellowship with Him, and for the fulfillment of all things. This is a feast of hope because through it we see all that has been accomplished, and we are given a glimpse of what is to come. This Feast of the Nativity of our Lord affirms for each one of us that we can have hope and joy in any of the circumstances and conditions of life—hope in the transformation of our lives through faith and hope in the power of God’s love.