John 17:15 New English Translation

¹⁵I am not asking you to take them out of the world, but that you keep them safe^[a] from the evil one.^[b]

John 17:15 tn Or “that you protect them”; Grk “that you keep them.”
John 17:15 tn The phrase “the evil one” is a reference to Satan. The genitive substantival adjective τοῦ πονηροῦ (tou ponērou) is ambiguous with regard to gender: It may represent the neuter τὸ πονηρόν (to ponēron), “that which is evil,” or the masculine ὁ πονηρός (ho ponēros), “the evil one,” i.e., Satan. In view of the frequent use of the masculine in 1 John 2:13-14; 3:12, and 5:18-19 it seems much more probable that the masculine is to be understood here, and that Jesus is praying for his disciples to be protected from Satan. Cf. BDAG 851 s.v. πονηρός 1.b.β and 1.b.γ.

New English Translation (NET)