¹ tn The καί (kai) at the beginning of 1:5 takes on a resumptive force, indicated by the phrase “heard from him and announce to you,” which echoes similar phrases in 1:2 and 1:3.

² tn The word “gospel” is not in the Greek text but is supplied to clarify the meaning. See the note on the following word “message.”

³ tn The word ἀγγελία (angelia) occurs only twice in the NT, here and in 1 John 3:11. It is a cognate of ἐπαγγελία (epangelia) which occurs much more frequently (some 52 times in the NT) including 1 John 2:25. BDAG 8 s.v. ἀγγελία 1 offers the meaning “message” which suggests some overlap with the semantic range of λόγος (logos), although in the specific context of 1:5 BDAG suggests a reference to the gospel. (The precise “content” of this “good news’ is given by the ὅτι [Joti] clause which follows in 1:5b.) The word ἀγγελία here is closely equivalent to εὐαγγέλιον (euangelion): (1) it refers to the proclamation of the eyewitness testimony about the life and ministry of Jesus Christ as proclaimed by the author and the rest of the apostolic witnesses (prologue, esp. 1:3-4), and (2) it relates to the salvation of the hearers/readers, since the purpose of this proclamation is to bring them into fellowship with God and with the apostolic witnesses (1:3). Because of this the adjective “gospel” is included in the English translation.

⁴ tn The referent of the pronoun “him” is not entirely clear in the Greek text; it could be either (1) God the Father, or (2) Jesus Christ, both of whom are mentioned at the end of v. 3. A reference to Jesus Christ is more likely because this is the nearest possible antecedent, and because God (the Father) is specifically mentioned in the following clause in v. 5.

⁵ tn The key to understanding the first major section of 1 John, 1:5-3:10, is found in the statement in v. 5: “God is light and in him there is no darkness at all.” The idea of “proclamation” – the apostolic proclamation of eyewitness testimony which the prologue introduces (1:2, 3) – is picked up in 1:5 by the use of the noun ἀγγελία (angelia) and the verb ἀναγγέλλομεν (anangellomen), cognate to the verb in 1:3. The content of this proclamation is given by the ὅτι (Joti) clause in 1:5 as the assertion that God is light, so this statement should be understood as the author’s formulation of the apostolic eyewitness testimony introduced in the prologue. (This corresponds to the apostolic preaching elsewhere referred to as κήρυγμα [khrugma], although the term the Apostle John uses here is ἀγγελία.)

sn Following the theme statement in 1:5, God is light and in him there is no darkness at all, the author presents a series of three claims and counterclaims that make up the first unit of 1 John (1:5-2:2). The three claims begin with “if” (1:6, 8, 10) and the three counterclaims begin with “but if” (1:7, 9; 2:1).

⁶ sn The person who practices sin is of the devil. 1 John 3:10 and John 8:44 might be cited as parallels, because these speak of opponents as the devil’s “children.” However, it is significant that the author of 1 John never speaks of the opponents as “fathered by the devil” in the same sense as Christians are “fathered by God” (3:9). A concept of evildoers as “fathered” by the devil in the same sense as Christians are fathered by God would imply a much more fully developed Gnosticism with its dualistic approach to humanity. The author of 1 John carefully avoids saying that the opponents are “fathered by the devil,” because in Johannine theology not to be fathered by God is to be fathered only by the flesh (John 1:13). This is a significant piece of evidence that 1 John predates the more fully developed Gnosticism of the 2nd century. What the author does say is that the opponents (“the one who practices sin”) are from the devil, in the sense that they belong to him and have given him their allegiance.

⁷ tn The present tense verb has been translated as an extending-from-past present (a present of past action still in progress). See ExSyn 520.

⁸ tn Here εἰς τοῦτο (eis touto) states the purpose for the revelation of God’s Son. However, the phrase offers the same difficulty as all the ἐν τούτῳ (en toutw) phrases in 1 John: Does it refer to what precedes or to what follows? By analogy with the ἐν τούτῳ construction it is probable that the phrase εἰς τοῦτο here refers to what follows: There is a ἵνα (Jina) clause following which appears to be related to the εἰς τοῦτο, and in fact is resumptive (that is, it restates the idea of “purpose” already expressed by the εἰς τοῦτο). Thus the meaning is: “For this purpose the Son of God was revealed: to destroy the works of the devil.”

⁹ tn In the Gospel of John λύσῃ (lush) is used both literally and figuratively. In John 1:27 it refers to a literal loosing of one’s sandal-thong, and in John 2:19 to a destruction of Jesus’ physical body which was understood by the hearers to refer to physical destruction of the Jerusalem temple. In John 5:18 it refers to the breaking of the Sabbath, in John 7:23 to the breaking of the law of Moses, and in John 10:35 to the breaking of the scriptures. The verb is again used literally in John 11:44 at the resurrection of Lazarus when Jesus commands that he be released from the graveclothes with which he was bound. Here in 1 John 3:8 the verb means, with reference to “the works of the devil,” to “destroy, bring to an end, abolish.” See BDAG 607 s.v. λύω 4 and F. Büchsel, TDNT 4:336.

¹⁰ 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”).

¹¹ 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.

¹² 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.”

¹³ tn The ἵνα (Jina) clause in 4:21 could be giving (1) the purpose or (2) the result of the commandment mentioned in the first half of the verse, but if it does, the author nowhere specifies what the commandment consists of. It makes better sense to understand this ἵνα clause as (3) epexegetical to the pronoun ταύτην (tauthn) at the beginning of 4:21 and thus explaining what the commandment consists of: “that the one who loves God should love his brother also.”

¹⁴ tn See note on the phrase “fellow Christian” in 2:9.

¹⁵ tn Or “the Messiah.”

¹⁶ tn The verb γεννάω (gennaw) here means to be fathered by God and thus a child of God. The imagery in 1 John is that of the male parent who fathers children. See the note on “fathered” in 2:29 for further discussion of this imagery.

¹⁷ tc ‡ Most witnesses ([א] A P 1739 Ï sy) have καί (kai, “also”) before the article τόν (ton). But the external evidence for the shorter reading is significant (B Ψ 048^vid 33 pc sa), and the conjunction looks to be a motivated reading in which scribes emulated the wording of 4:21 (ἀγαπᾷ καὶ τόν, agapa kai ton). NA²⁷ places the conjunction in brackets, indicating doubts as to its authenticity.

¹⁸ sn Also loves the child fathered by him. Is the meaning of 5:1b a general observation or a specific statement about God and Christians? There are three ways in which the second half of 5:1 has been understood: (1) as a general statement, proverbial in nature, applying to any parent: “everyone who loves the father also loves the child fathered by him.” (2) This has also been understood as a statement that is particularly true of one’s own parent: “everyone who loves his own father also loves the (other) children fathered by him (i.e., one’s own brothers and sisters).” (3) This could be understood as a statement which refers particularly to God, in light of the context (5:1a): “everyone who loves God who fathered Christians also loves the Christians who are fathered by God.” Without doubt options (2) and (3) are implications of the statement in its present context, but it seems most probable that the meaning of the statement is more general and proverbial in nature (option 1). This is likely because of the way in which it is introduced by the author with πᾶς ὁ (pas Jo) + participle. The author could have been more explicit and said something like, “everyone who loves God also loves God’s children” had he intended option (3) without ambiguity. Yet that, in context, is the ultimate application of the statement, because it ultimately refers to the true Christian who, because he loves God, also loves the brethren, those who are God’s offspring. This is the opposite of 4:20, where the author asserted that the opponents, who profess to love God but do not love the brethren, cannot really love God because they do not love the brethren.