The Council in Trullo was held in 692 under Emperor Justinian II, and is also referred to as
the Quinisextum canons. This Canon acknowledges the order of the deaconess and provides age guidelines for her ordination.
Since to cleave to God by retiring from the noise and turmoil of life is very beneficial, it behooves us not without examination to admit before the proper time those who choose the monastic life, but to observe respecting them the limit handed down by our fathers, in order that we may then admit a profession of the life according to God as for ever firm, and the result of knowledge and judgment after years of discretion have been reached. He therefore who is about to submit to the yoke of monastic life should not be less than ten years of age, the examination of the matter depending on the decision of the bishop, whether he considers a longer time more conducive for his entrance and establishment in the monastic life. For although the great Basil in his holy canons decreed that she who willingly offers to God and embraces virginity, if she has completed her seventeenth year, is to be entered in the order of virgins: nevertheless, having followed the example respecting widows and deaconesses, analogy and proportion being considered, we have admitted at the said time those who have chosen the monastic life. For it is written in the divine Apostle that a widow is to be elected in the church at sixty years old: but the sacred canons have decreed that a deaconess shall be ordained at forty, since they saw that the Church by divine grace had gone forth more powerful and robust and was advancing still further, and they saw the firmness and stability of the faithful in observing the divine commandments. Wherefore we also, since we most rightly comprehend the matter, appoint the benediction of grace to him who is about to enter the struggle according to God, even as impressing speedily a certain seal upon him, hereupon introducing him to the not-long-to-be-hesitated-over and declined, or rather inciting him even to the choice and determination of good.