Almighty God, whose Son our Savior Jesus Christ was lifted high upon the cross that he might draw the whole world unto himself: Mercifully grant that we, who glory in the mystery of our redemption, may have grace to take up our cross and follow him; who liveth and reigneth with thee and the Holy Spirit, one God, in glory everlasting. Amen +
I commend this site for a very good discussion on this feast day http://www.satucket.com/lectionary/Holy_Cross.htm
This is an special day in the calendar of the Order of the Centurions. It was first celebrated as a feast day in 335 on 14 September when the Church of the Holy Sepulchre was dedicated. Helena, mother of Emperor Constantine, went to the Holy Land to find the ancient places of the Bible and located Golgatha, the tomb, and the remains of the Cross. She set the practice for later pilgrimages that continue to this day. Her faith was important to Constantine's, who we recognize in the Order, and the entire Orthodox and Catholic Church as we know it today.