“Dear friends, we possess many true witnesses about Christ. The heavenly Father bears witness through the Son; the Holy Spirit bears witness, descending bodily in the form of a dove; the archangel Gabriel bears witness, bringing the glad tidings to Mary; the Virgin Theotókos bears witness to him; the blessed place of his manger bears witness on his behalf.”
Cyril of Jerusalem, Catecheses 10, 19; PG 33, 685 A.
If you are interested in more quotes on Virgin Mary, you can find them in Mary and the Fathers of the Church on Amazon in both in Kindle and paperback formats.
References:
Gambero, L., 1999. Mary and the Fathers of the Church 1st ed. Translated by Buffer, T., San Francisco: Ignatius Press. p. 132.