Text -- 1 John 5:18-21 (NET)

5:18 We know that everyone fathered by God does not sin, but God protects the one he has fathered, and the evil one cannot touch him. 5:19 We know that we are from God, and the whole world lies in the power of the evil one. 5:20 And we know that the Son of God has come and has given us insight to know him who is true, and we are in him who is true, in his Son Jesus Christ. This one is the true God and eternal life. 5:21 Little children, guard yourselves from idols.

Commentary -- Verse Notes / Footnotes

NET Notes: 1Jo 5:18

¹ tn The concept represented by 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 2:29).

² tn Grk “he”; see the note on the following word “protects.”

³ tn The meaning of the phrase ὁ γεννηθεὶς ἐκ τοῦ θεοῦ τηρεῖ αὐτόν (Jo gennhqeis ek tou qeou threi auton) in 5:18 is extraordinarily difficult. Again the author’s capacity for making obscure statements results in several possible meanings for this phrase: (1) “The fathering by God protects him [the Christian].” Here a textual variant for ὁ γεννηθείς (ἡ γέννησις, Jh gennhsi") has suggested to some that the passive participle should be understood as a noun (“fathering” or perhaps “birth”), but the ms evidence is extremely slight (1505 1852 2138 latt [sy^h] bo). This almost certainly represents a scribal attempt to clarify an obscure phrase. (2) “The One fathered by God [Jesus] protects him [the Christian].” This is a popular interpretation, and is certainly possible grammatically. Yet the introduction of a reference to Jesus in this context is sudden; to be unambiguous the author could have mentioned the “Son of God” here, or used the pronoun ἐκεῖνος (ekeinos) as a reference to Jesus as he consistently does elsewhere in 1 John. This interpretation, while possible, seems in context highly unlikely. (3) “The one fathered by God [the Christian] protects himself.” Again a textual problem is behind this alternative, since a number of mss (א A^c P Ψ 33 1739 Ï) supply the reflexive pronoun ἑαυτόν (Jeauton) in place of αὐτόν in 5:18. On the basis of the external evidence this has a good possibility of being the original reading, but internal evidence favors αὐτόν as the more difficult reading, since ἑαυτόν may be explained as a scribal attempt at grammatical smoothness. From a logical standpoint, however, it is difficult to make much more sense out of ἑαυτόν; to say what “the Christian protects himself” means in the context is far from clear. (4) “The one fathered by God [the Christian] holds on to him [God].” This results in further awkwardness, because the third person pronoun (αὐτοῦ, autou) in the following clause must refer to the Christian, not God. Furthermore, although τηρέω (threw) can mean “hold on to” (BDAG 1002 s.v. 2.c), this is not a common meaning for the verb in Johannine usage, occurring elsewhere only in Rev 3:3. (5) “The one fathered by God [the Christian], he [God] protects him [the Christian].” This involves a pendant nominative construction (ὁ γεννηθεὶς ἐκ τοῦ θεοῦ) where a description of something within the clause is placed in the nominative case and moved forward ahead of the clause for emphatic reasons. This may be influenced by Semitic style; such a construction is also present in John 17:2 (“in order that everyone whom You have given to him, he may give to them eternal life”). This view is defended by K. Beyer (Semitische Syntax im Neuen Testament [SUNT], 1:216ff.) and appears to be the most probable in terms both of syntax and of sense. It makes God the protector of the Christian (rather than the Christian himself), which fits the context much better, and there is precedent in Johannine literature for such syntactical structure.

NET Notes: 1Jo 5:19

¹ tn The preposition ἐκ (ek) here indicates both source and possession: Christians are “from” God in the sense that they are begotten by him, and they belong to him. For a similar use of the preposition compare the phrases ἐκ τοῦ πατρός (ek tou patro") and ἐκ τοῦ κόσμου (ek tou kosmou) in 1 John 2:16.

NET Notes: 1Jo 5:20

¹ tn The ἵνα (Jina) introduces a purpose clause which gives the purpose of the preceding affirmation: “we know that the Son of God has come and has given us insight (so that we may) know him who is true.”

² sn The pronoun This one (οὗτος, Joutos) refers to a person, but it is far from clear whether it should be understood as a reference (1) to God the Father or (2) to Jesus Christ. R. E. Brown (Epistles of John [AB], 625) comments, “I John, which began with an example of stunning grammatical obscurity in the prologue, continues to the end to offer us examples of unclear grammar.” The nearest previous antecedent is Jesus Christ, immediately preceding, but on some occasions when this has been true the pronoun still refers to God (see 1 John 2:3). The first predicate which follows This one in 5:20, the true God, is a description of God the Father used by Jesus in John 17:3, and was used in the preceding clause of the present verse to refer to God the Father (him who is true). Yet the second predicate of This one in 5:20, eternal life, appears to refer to Jesus, because although the Father possesses “life” (John 5:26, 6:57) just as Jesus does (John 1:4, 6:57, 1 John 5:11), “life” is never predicated of the Father elsewhere, while it is predicated of Jesus in John 11:25 and 14:6 (a self-predication by Jesus). If This one in 5:20 is understood as referring to Jesus, it forms an inclusion with the prologue, which introduced the reader to “the eternal life which was with the Father and was manifested to us.” Thus it appears best to understand the pronoun This one in 5:20 as a reference to Jesus Christ. The christological affirmation which results is striking, but certainly not beyond the capabilities of the author (see John 1:1 and 20:28): This One [Jesus Christ] is the true God and eternal life.

NET Notes: 1Jo 5:21

¹ tc Most later mss (P Ï) have ἀμήν (amhn, “amen”) at the end of this letter. Such a conclusion is routinely added by scribes to NT books because a few of these books originally had such an ending (cf. Rom 16:27; Gal 6:18; Jude 25). A majority of Greek witnesses have the concluding ἀμήν in every NT book except Acts, James, and 3 John (and even in these books, ἀμήν is found in some witnesses). It is thus a predictable variant. Further, the earliest and best witnesses, along with several others (א A B Ψ 33 323 630 1505 1739 al sy co), lack the inoffensive particle, rendering its omission as the authentic reading.

sn The modern reader may wonder what all this has to do with idolatry. In the author’s mind, to follow the secessionist opponents with their false Christology would amount to idolatry, since it would involve worshiping a false god instead of the true God, Jesus Christ. Thus guard yourselves from idols means for the readers to guard themselves against the opponents and their teaching.