ST Suppl., q. 72
Of Prayers with Regard to the Saints in Heaven
Supplement — compiled posthumously from Aquinas's early Sentences commentary
We must now consider prayer with regard to the saints in heaven. Under this head there are three points of inquiry:
(1) Whether the saints have knowledge of our prayers?
(2) Whether we should beseech them to pray for us?
(3) Whether the prayers they pour forth for us are always granted?