13 καὶ μὴ εἰσενέγκῃς ἡμᾶς εἰς πειρασμόν,
ἀλλὰ ῥῦσαι ἡμᾶς ἀπὸ τοῦ πονηροῦ.
And do not bring us into temptation
but deliver us from the evil one.
ἀπὸ τοῦ πονηροῦ (from the evil one)
πονηροῦ is from πονηρός meaning evil. It is in a genitive singular form in this passage. πονηρός used mostly as an adjective, but here it is being used as a singular noun. Most translations render this simple as “evil”. Jesus may be pin-pointing who we are to ask to be delivered from.