{Know we} (egn(936b)amen). Perfect active indicative, "we have
come to know and still know." See  2:3  for "hereby" (en
tout(9369)). {Love} (	(886e) agap(886e)). "The thing called love" (D.
Smith). {He for us} (ekeinos huper h(886d)(936e)). Ekeinos as in
 2:6  3:3,5 , huper here alone in this Epistle, though common
in John's Gospel ( 10:11,15  11:50 , etc.) and in  3Jo 1:7 .
{Laid down his life} (	(886e) psuch(886e) autou eth(886b)en). First aorist
active indicative of 	ith(886d)i, the very idiom used by Jesus of
himself in  Joh 10:11,17f . {We ought} (h(886d)eis opheilomen).
Emphatic h(886d)eis again. For opheil(935c) see  2:6 . Of course our
laying down our lives for the brethren has no atoning value in
our cases as in that of Christ, but is a supreme proof of one's
love ( Joh 13:37f.  15:13 ), as often happens.