1 John 3:7

3:7 Little children, let no one deceive you: The one who practices righteousness is righteous, just as Jesus is righteous.

1 John 3:10

3:10 By this the children of God and the children of the devil are revealed: Everyone who does not practice righteousness – the one who does not love his fellow Christian – is not of God.

Jeremiah 13:23

13:23 But there is little hope for you ever doing good,

you who are so accustomed to doing evil.

Can an Ethiopian change the color of his skin?

Can a leopard remove its spots?

Matthew 7:16-18

7:16 You will recognize them by their fruit. Grapes are not gathered from thorns or figs from thistles, are they? 7:17 In the same way, every good tree bears good fruit, but the bad tree bears bad fruit. 7:18 A good tree is not able to bear bad fruit, nor a bad tree to bear good fruit.

Acts 10:35

10:35 but in every nation 10  the person who fears him 11  and does what is right 12  is welcomed before him.

Titus 2:12-14

2:12 It trains us 13  to reject godless ways 14  and worldly desires and to live self-controlled, upright, and godly lives in the present age, 2:13 as we wait for the happy fulfillment of our hope in the glorious appearing 15  of our great God and Savior, Jesus Christ. 16  2:14 He 17  gave himself for us to set us free from every kind of lawlessness and to purify for himself a people who are truly his, 18  who are eager to do good. 19 

sn The one who practices righteousness. The participle (ὁ ποιῶν, Jo poiwn) + noun constructions in 3:7 and in 3:8a, the first positive and the second negative, serve to emphasize the contrast between the true Christians (“the one who practices righteousness”) and the opponents (“the one who practices sin,” 3:8a).

tn Grk “that one.” Context indicates a reference to Jesus here. As with the previous uses of ἐκεῖνος (ekeinos) by the author of 1 John (2:6; 3:3, 5), this one refers to Jesus, as the reference to “the Son of God” in the following verse (3:8) makes clear.

tn Once again there is the problem (by now familiar to the interpreter of 1 John) of determining whether the phrase ἐν τούτῳ (en toutw) in 3:10 refers (1) to what precedes or (2) to what follows. If it refers to what precedes, it serves to conclude the unit which began with 2:28. The remainder of 3:10 would then form a transition to the following material (another “hinge” passage). On the other hand, if the phrase ἐν τούτῳ refers to what follows, then the entirety of 3:10 is a summary statement at the end of 2:28-3:10 which recapitulates the section’s major theme (conduct is the clue to paternity), and provides at the same time a transition to the theme of loving one’s brother which will dominate the following section (3:11-24). Although R. E. Brown (Epistles of John [AB], 416) prefers to see the phrase as referring to the preceding material, it makes better sense to refer it to the remainder of 3:10 that follows, and see the entirety of 3:10 as both a summary of the theme of the preceding section 2:28-3:10 and a transition to the following section 3:11-24.

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

tn This is a common proverb in English coming from this biblical passage. For cultures where it is not proverbial perhaps it would be better to translate “Can black people change the color of their skin?” Strictly speaking these are “Cushites” inhabitants of a region along the upper Nile south of Egypt. The Greek text is responsible for the identification with Ethiopia. The term in Greek is actually a epithet = “burnt face.”

tn Heb “Can the Ethiopian change his skin or the leopard his spots? [Then] you also will be able to do good who are accustomed to do evil.” The English sentence has been restructured and rephrased in an attempt to produce some of the same rhetorical force the Hebrew original has in this context.

tn Grk “They do not gather.” This has been simplified to the passive voice in the translation since the subject “they” is not specified further in the context.

sn The statement illustrates the principle: That which cannot produce fruit does not produce fruit.

tn Grk “rotten.” The word σαπρός, modifying “tree” in both v. 17 and 18, can also mean “diseased” (L&N 65.28).

10 sn See Luke 24:47.

11 tn Or “shows reverence for him.”

12 tn Grk “works righteousness”; the translation “does what is right” for this phrase in this verse is given by L&N 25.85.

13 tn Grk “training us” (as a continuation of the previous clause). Because of the length and complexity of the Greek sentence, a new sentence was started at the beginning of v. 12 by translating the participle παιδεύουσα (paideuousa) as a finite verb and supplying the pronoun “it” as subject.

14 tn Grk “ungodliness.”

15 tn Grk “the blessed hope and glorious appearing.”

16 tn The terms “God and Savior” both refer to the same person, Jesus Christ. This is one of the clearest statements in the NT concerning the deity of Christ. The construction in Greek is known as the Granville Sharp rule, named after the English philanthropist-linguist who first clearly articulated the rule in 1798. Sharp pointed out that in the construction article-noun-καί-noun (where καί [kai] = “and”), when two nouns are singular, personal, and common (i.e., not proper names), they always had the same referent. Illustrations such as “the friend and brother,” “the God and Father,” etc. abound in the NT to prove Sharp’s point. The only issue is whether terms such as “God” and “Savior” could be considered common nouns as opposed to proper names. Sharp and others who followed (such as T. F. Middleton in his masterful The Doctrine of the Greek Article) demonstrated that a proper name in Greek was one that could not be pluralized. Since both “God” (θεός, qeos) and “savior” (σωτήρ, swthr) were occasionally found in the plural, they did not constitute proper names, and hence, do fit Sharp’s rule. Although there have been 200 years of attempts to dislodge Sharp’s rule, all attempts have been futile. Sharp’s rule stands vindicated after all the dust has settled. For more information on Sharp’s rule see ExSyn 270-78, esp. 276. See also 2 Pet 1:1 and Jude 4.

17 tn Grk “who” (as a continuation of the previous clause).

18 tn Or “a people who are his very own.”

19 tn Grk “for good works.”