¹ tn The translation of καί (kai) at the beginning of 2:3 is important for understanding the argument, because a similar καί occurs at the beginning of 1:5. The use here is not just a simple continuative or connective use, but has more of a resumptive force, pointing back to the previous use in 1:5.

sn Now. The author, after discussing three claims of the opponents in 1:6, 8, and 10 and putting forward three counterclaims of his own in 1:7, 1:9, and 2:1, now returns to the theme of “God as light” introduced in 1:5. The author will now discuss how a Christian may have assurance that he or she has come to know the God who is light, again by contrast with the opponents who make the same profession of knowing God, but lack the reality of such knowledge, as their behavior makes clear.

² tn Grk “know him.” (1) Many take the third person pronoun αὐτον (auton) to refer to Jesus Christ, since he is mentioned in 2:1 and the pronoun αὐτός (autos) at the beginning of 2:2 clearly refers to him. But (2) it is more likely that God is the referent here, since (a) the assurance the author is discussing here is assurance that one has come to know God (all the claims of the opponents in 1:5-2:11 concern knowing and having fellowship with the God who is light); (b) when Jesus Christ is explicitly mentioned as an example to follow in 1 John 2:6, the pronoun ἐκεῖνος (ekeinos) is used to distinguish this from previous references with αὐτός; (c) the καί (kai) which begins 2:3 is parallel to the καί which begins 1:5, suggesting that the author is now returning to the discussion of God who is light, a theme introduced in 1:5. The author will now discuss how a Christian may have assurance that he or she has come to know the God who is light.

³ tn The mood of γινώσκετε (ginwskete) may be understood as (1) indicative or (2) imperative. It is better to understand the verb here as indicative, because in 1 John “knowledge” is something one has as a result of being a believer (2:3, 5, 20, 21; 3:16, 19, 24; 4:2, 13; 5:2) rather than something one has to be exhorted about. The change in verbs from οἶδα (oida) to γινώσκω (ginwskw) is another example of Johannine stylistic variation.

⁴ tn The verb γεννάω (gennaw) presents a translation problem: (1) should the passive be translated archaically “be begotten” (the action of the male parent; see BDAG 193 s.v. 1.a) or (2) should it be translated “be born” (as from a female parent; see BDAG 194 s.v. 2)? A number of modern translations (RSV, NASB, NIV) have opted for the latter, but (3) the imagery expressed in 1 John 3:9 clearly refers to the action of the male parent in procreating a child, as does 5:1 (“everyone who loves the father loves the child fathered by him”), and so a word reflecting the action of the male parent is called for here. The contemporary expression “fathered by” captures this idea.

⁵ tn The first ὅτι (Joti) in 3:20 may be understood either (1) as causal, “because if our heart condemns us,” or (2) as epexegetical (explanatory), “that if our heart condemns us.” There are two other instances of the combination ὅτι ἐάν (Joti ean) in 1 John, 3:2 and 5:14. In 3:14 the ὅτι clearly introduces an indirect discourse (content) clause following οἴδαμεν (oidamen). In 5:14 the ὅτι is epexegetical to a preceding statement (“and this is the confidence [ἡ παρρησία, Jh parrhsia] which we have before him, that if we ask anything according to his will he hears us”). This is analogous to the present situation, and the subject under discussion (the believer’s confidence before God) is also similar (cf. 3:21-22). It is thus more likely, by analogy, that the first ὅτι clause in 3:20, ὅτι ἐὰν καταγινώσκῃ ἡμῶν ἡ καρδία ({oti ean kataginwskh Jhmwn Jh kardia), should also be understood as epexegetical to the preceding clause, ἔμπροσθεν αὐτοῦ πείσομεν τὴν καρδίαν (emprosqen autou peisomen thn kardian, “and we convince our heart before him”).

⁶ tn In Deut 25:1 LXX καταγινώσκω (kataginwskw) means “to condemn” in a context where it is in opposition to δικαιοῦν (dikaioun, “to acquit”). In Job 42:6 LXX (Symmachus) and Ezek 16:61 LXX (Symmachus) it is used of self-judgment or self-condemnation, and this usage is also found in the intertestamental literature (Sir 14:2). Testament of Gad 5:3 describes a person οὐχ ὑπ᾿ ἄλλου καταγινωσκόμενος ἀλλ᾿ ὑπὸ τῆς ἰδίας καρδίας (ouc Jup’ a[llou kataginwskomeno" all’ Jupo th" idia" kardia", “condemned not by another but by his own heart”). Thus the word has legal or forensic connotations, and in this context refers to the believer’s self-condemnation resulting from a guilty conscience concerning sin.

⁷ tn The use of two ὅτι (Joti) clauses in close succession is somewhat awkward, but this is nothing new for the author; and indeed he has twice previously used two ὅτι clauses in close proximity in 3:2 and 14. In both those instances the second ὅτι was understood as causal, and (1) some interpreters would do the same here. Unless one understands both of the ὅτι clauses in 3:20 as causal, however (an option rejected based on the analogy with 5:14, see the discussion in the note on “that” at the beginning of the present verse), the first ὅτι clause must be understood as parenthetical in order for the second to be causal. This results in an even more awkward construction. It seems most probable that (2) the second ὅτι clause in 3:20 should also be understood as epexegetical (explanatory), and resumptive to the first. The resultant meaning is as follows: “and we convince our heart before him, that if our heart condemns us, that God is greater than our heart and knows all things.”

⁸ tn Grk “Whoever.”

⁹ tn Here μένει (menei, from μένω [menw]) has been translated as “resides” because the confession is constitutive of the relationship, and the resulting state (“God resides in him”) is in view.