{If we say} (ean eip(936d)en). Condition of third class with
ean and second aorist (ingressive, up and say) active
subjunctive. Claiming fellowship with God (see verse  3 )
involves walking in the light with God (verse  5 ) and not in the
darkness (skotos here, but skotia in  Joh 1:5 ). See  2:11 
also for en t(8869) skoti(8369) peripate(935c). {We lie} (pseudometha).
Present middle indicative, plain Greek and plain English like
that about the devil in  Joh 8:44 . {Do not the truth} (ou
poioumen t(886e) al(8874)heian). Negative statement of the positive
pseudometha as in  Joh 8:44 . See  Joh 3:21  for "doing the
truth," like  Ne 9:33 .