1 tn The interpretation of the three ὅτι clauses in v. 21 is very difficult: (1) All three instances of ὅτι (Joti) may be causal (so NASB, NIV, NEB). (2) The first two may be causal while the third indicates content (declarative or recitative ὅτι, so KJV, RSV, TEV, NRSV). (3) However, it is best to take all three instances as indicating content because this allows all three to be subordinate to the verb ἔγραψα (egraya) as compound direct objects. The author writes to reassure his readers (a) that they do indeed know the truth (first two uses of ὅτι) and (b) that no lie is of the truth (third use).
2 tn See the note on the first occurrence of “that” in v. 21.
3 tn See the note on the first occurrence of “that” in v. 21.
4 tn This use of ἐάν (ean) with the indicative mood rather than the subjunctive constitutes an anomalous usage. Here ἐάν is used instead of ἐι (ei) to introduce a first-class condition: “if we know (οἴδαμεν, oidamen) that he hears us in regard to whatever we ask, then we know that we have the requests which we have asked from him.” The reality of the condition (protasis) is assumed for the sake of argument; given the protasis, the apodosis follows. The use of ἐάν for ἐι is rare but not without precedent; see M. Zerwick (Biblical Greek §§330-31).