Saint Philip teaches us that whenever we are in temptation, we should pray to God, saying, “O God, come to my aid, O Lord, make haste to help me.”This advice comes from Saint John Cassian’s Collation On Prayer, where he reflects on this verse from the Psalms.
Cassian promotes its use for all occasions. He says that it “meets every emotion that can affect human nature and can be suitably adapted to every state of life.” Whatever moment we find ourselves in—yes, in temptation, but also in joy, in sorrow, at work or at rest—we can always use this short prayer. For Cassian, making use of this psalm verse throughout the day is the surest way of fulfilling Saint Paul’s command to “pray at all times.”
Cassian says that these words should “follow you throughout the day.” Saint Benedict took this advice literally, mandating in his Rule that “O God, come to our aid; O Lord, make haste to help us” be said first at each Hour of the Divine Office. Saint Gregory the Great eventually extended this practice across the Roman Church. Since then, each hour of the Divine Office has begun with this verse, and you may have heard it sung at the start of Vespers in our own church.
Saint Philip says that we ought “always to have some little prayers ready, and to be darting them up to heaven frequently during the day.” The short psalm verse recommended by Cassian can become one of those ‘darts’ we shoot into heaven. Even in the midst of a hectic day, we can raise our minds and hearts to God, who strengthens us in all we do.
The Collations of St John Cassian are among the oldest and most influential books of Christian spirituality. The book is presented as a series of conversations between Cassian, his friend Germanus, and the great monks of the Egyptian desert, preserving the wisdom of men who had devoted their lives entirely to the pursuit of holiness.
The reflections over the coming weeks are based on ideas found in the Collations. There is no need to read them to follow each reflection, but the work is available, in an excellent modern translation by our own Fr Jerome, from our bookshop in person and online.


