Ye - warned by the case of those “unlearned and unstable” persons (2Pe 3:16).
knowing ... before - the event.
led away with - the very term, as Peter remembers, used by Paul of Barnabas’ being “carried,” Greek, “led away with” Peter and the other Jews in their hypocrisy.
wicked - “lawless,” as in 2Pe 2:7.
fall from - (grace, Gal 5:4 : the true source of) “steadfastness” or stability in contrast with the “unstable” (2Pe 3:16): “established” (2Pe 1:12): all kindred Greek terms. Compare Jud 1:20, Jud 1:21.