11. αὐτοὶ ἀπολοῦνται. Isa 34:4, &c.; 2Pe 3:12; Rev 21:1.
διαμένεις, “abidest through all times.” This, and not the future διαμενεῖς, is the right reading, for it is parallel to σὺ δὲ ὁ αὐτὸς εἶ. Διαμένειν means to abide through all changes.
ὡσεὶ περιβόλαιον. ὡς ἱμάτιον is a common Scripture metaphor. Isa 50:9, &c.