Augustine of Hippo — as excerpted in the Catena Aurea on Luke 11:1-4

“(in Enchirid. c. 116.) But what Matthew has placed at the end, But deliver us from evil, Luke has not mentioned, that we might understand it belongs to the former, which was spoken of temptation. He therefore says, But deliver us, not, “And deliverus,” clearly proving this to be but one petition,” Do not this, but this.” But let every one know that he is therein delivered from evil, when he is not brought into temptation.”