{We know} (egn(936b)amen). Perfect active indicative, "we have
come to know and still know" as in  Joh 6:9 , only there order is
changed (pepisteukamen coming before egn(936b)amen). Confession
(homologe(935c)) follows experimental knowledge (gin(9373)k(935c)) and
confident trust (pisteu(935c)). Believers are the sphere (en
h(886d)in, in our case) in which the love of God operates
(Westcott). See  Joh 13:35  for "having love." {God is love} (ho
theos agap(8820)estin). Repeated from verse  8 . So he gathers up
the whole argument that one who is abiding in love is abiding in
God and shows that God is abiding in him. Thoroughly Johannine
style.