St. Basil the Great: Of the Holy Trinity, the Incarnation, the invocation of Saints, and their Images.

'According to the blameless faith of the Christians which we have obtained from God, I confess and agree that I believe in one God the Father Almighty; God the Father, God the Son, God the Holy Ghost; I adore and worship one God, the Three. I confess to the economy of the Son in the flesh, and that the holy Mary, who gave birth to Him according to the flesh, was Mother of God. 

I acknowledge also the holy apostles, prophets, and martyrs; and I invoke them to supplication to God, that through them, that is, through their mediation, the merciful God may be propitious to me, and that a ransom may be made and given me for my sins. 

Wherefore also I honour and kiss the features of their images, inasmuch as they have been handed down from the holy apostles, and are not forbidden, but are in all our churches.'

St. Basil the Great