¹ tn Grk “be knowing this.” See also 2 Pet 1:20 for a similar phrase: τοῦτο πρῶτον γινώσκοντες (touto prwton ginwskonte").

¹ sn The pronoun “this” (τοῦτο, touto) stands first in its clause for emphasis, and stresses the fact that God will reward those, who in seeking him, do good.

⁵ tn Grk “for this condemnation.” τοῦτο (touto) is almost surely a kataphoric demonstrative pronoun, pointing to what follows in vv. 5-18. Otherwise, the condemnation is only implied (in v. 3b) or is merely a statement of their sinfulness (“ungodly” in v. 4b), not a judgment of it.

¹ tn Grk “knowing this [to be] foremost.” Τοῦτο πρῶτον (touto prwton) constitute the object and complement of γινώσκοντες (ginwskonte"). The participle is dependent on the main verb in v. 19 (“you do well [if you pay attention]”), probably in a conditional usage. An alternative is to take it imperativally: “Above all, know this.” In this rendering, πρῶτον is functioning adverbially. Only here and 2 Pet 3:3 is τοῦτο πρῶτον found in the NT, making a decision more difficult.

⁴ sn Holy prophets…apostles. The first chapter demonstrated that the OT prophets were trustworthy guides (1:19-21) and that the NT apostles were also authoritative (1:16-18). Now, using the same catch phrase found in the Greek text of 1:20 (τοῦτο πρῶτον γινώσκοντες, touto prwton ginwskontes), Peter points to specific prophecies of the prophets as an argument against the false teachers.

⁴ tn Lexically it is clear that this phrase indicates reason, but what is not clear is whether (1) τοῦτο (touto) refers to what follows, (2) to what precedes, or (3) to both (as with the ἐν τοῦτο [en touto] phrases throughout 1 John). Διὰ τοῦτο (dia touto) occurs 15 times in the Gospel of John, and a pattern emerges which is so consistent that it appears to be the key to the usage here. Six times in the Gospel of John (5:16, 18; 8:47; 10:17; 12:18, 39) the phrase refers to what follows, and in each of these instances an epexegetical ὅτι (Joti) clause follows. Nine times in John (1:31, 6:65, 7:21-22, 9:23, 12:27, 13:11, 15:19, 16:15, 19:11) the phrase refers to what precedes, and in none of these instances is it followed by a ὅτι clause. The phrase διὰ τοῦτο is used three times in the Johannine Epistles. In two of these (1 John 4:5, 3 John 10) there is no ὅτι clause following, and so the διὰ τοῦτο should refer to preceding material. Here in 3:1 there is an epexegetical ὅτι clause following, so the διὰ τοῦτο should (unless it is the only exception in the Gospel of John and the Johannine Epistles) refer to what follows, that is, to the ὅτι clause itself. This is indicated by the colon in the translation.

¹ tn Or “instruction.” The LXX reads here τὸ δευτερονόμιον τοῦτο (to deuteronomion touto, “this second law”). From this Greek phrase the present name of the book, “Deuteronomy” or “second law” (i.e., the second giving of the law), is derived. However, the MT’s expression מִשְׁנֶה הַתּוֹרָה הַזֹּאת (mishneh hattorah hazzo’t) is better rendered “copy of this law.” Here the term תּוֹרָה (torah) probably refers only to the book of Deuteronomy and not to the whole Pentateuch.

¹ tn Grk “knowing this [to be] foremost.” Τοῦτο πρῶτον (touto prwton) constitute the object and complement of γινώσκοντες (ginwskonte"). The participle is loosely dependent on the infinitive in v. 2 (“[I want you] to recall”), perhaps in a telic sense (thus, “[I want you] to recall…[and especially] to understand this as foremost”). The following statement then would constitute the main predictions with which the author was presently concerned. An alternative is to take it imperativally: “Above all, know this.” In this instance, however, there is little semantic difference (since a telic participle and imperatival participle end up urging an action). Cf. also 2 Pet 1:20.

³ 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.”

¹ tc Most mss (A C³ Ψ 33 Ï) have τὸ εἰ δύνασαι πιστεῦσαι (to ei dunasai pisteusai, “if you are able to believe”), instead of τὸ εἰ δύνῃ (to ei dunh, “if you are able”; supported by א B C* L N* Δ Ë¹ 579 892 pc). Others have εἰ δύνῃ (or δυνάσαι) πιστεῦσαι (“if you are able to believe”; so D K Θ Ë¹³ 28 565 al), while still others have τοῦτο εἰ δύνῃ (touto ei dunh, “if you can [do] this”; so [Ì⁴⁵] W). The reading that best explains the rise of the others is τὸ εἰ δύνῃ. The neuter article indicates that the Lord is now quoting the boy’s father who, in v. 22, says εἴ τι δύνῃ (ei ti dunh, “if you are able to do anything”). The article is thus used anaphorically (see ExSyn 238). However, scribes could easily have overlooked this idiom and would consequently read τὸ εἰ δύνῃ as the protasis of a conditional clause of the Lord’s statement. As such, it would almost demand the infinitive πιστεῦσαι, producing the reading τὸ εἰ δύνασαι πιστεῦσαι (“if you are able to believe, all things are possible…”). But the article here seems to be meaningless, prompting other scribes to modify the text still further. Some dropped the nonsensical article, while others turned it into the demonstrative τοῦτο and dropped the infinitive. It is clear that scribes had difficulty with the original wording here, and made adjustments in various directions. What might not be so clear is the exact genealogy of the descent of all the readings. However, τὸ εἰ δύνῃ is both a hard saying, best explains the rise of the other readings, and is supported by the best witnesses. It thus rightly deserves to be considered authentic.