Titus of Bostra — as excerpted in the Catena Aurea on Luke 11:1-4

“Or the bread of souls is the Divine power, bringing the everlasting life which is to come, as the bread which comes out of the earth preserves the temporal life. But by saying “daily,” He signifies the Divine bread which comes and is to come, which we seek to be given to us daily, requiring a certain earnest and taste of it, seeing that the Spirit which dwells in us hath wrought a virtue surpassing all human virtues, as chastity, humility, and the rest.”