{Keep yourselves} (heautous t(8872)(8873)ate). First aorist active
imperative (of urgency) of 	(8872)e(935c). In verse  1  they are said to
be kept, but note the warning in verse  5  from the angels who
did not keep their dominion. See also  Jas 1:27 . In  Php 2:12 
both sides (human responsibility and divine sovereignty are
presented side by side). {Looking for} (prosdechomenoi).
Present middle participle of prosdechomai, the very form in
 Tit 2:13 . The same idea in prosdok(936e)tes in  2Pe 3:14 .