Acts 18:28

18:28 for he refuted the Jews vigorously ¹  in public debate, ²  demonstrating from the scriptures that the Christ ³  was Jesus. ⁴ 

Acts 17:2

17:2 Paul went to the Jews in the synagogue, ⁵  as he customarily did, and on three Sabbath days he addressed ⁶  them from the scriptures,

[18:28]  ¹ tn Or “vehemently.” BDAG 414 s.v. εὐτόνως has “vigorously, vehemently…εὐ. διακατελέγχεσθαί τινι refute someone vigorously Ac 18:28.”

[18:28]  ² tn L&N 33.442 translates the phrase τοῖς ᾿Ιουδαίοις διακατηλέγχετο δημοσίᾳ (toi" Ioudaioi" diakathlenceto dhmosia) as “he defeated the Jews in public debate.” On this use of the term δημόσιος (dhmosio") see BDAG 223 s.v. 2.

[18:28]  ³ tn Or “Messiah”; both “Christ” (Greek) and “Messiah” (Hebrew and Aramaic) mean “one who has been anointed.” Again the issue is identifying the Christ as Jesus (see 5:42; 8:5; 9:22; 18:5).

[18:28]  ⁴ tn Although many English translations have here “that Jesus was the Christ,” in the case of two accusatives following a copulative infinitive, the first would normally be the subject and the second the predicate nominative. Additionally, the first accusative here (τὸν χριστόν, ton criston) has the article, a further indication that it should be regarded as subject of the infinitive.

[17:2]  ⁵ tn Grk “he went in to them”; the referent (the Jews in the synagogue) has been specified in the translation for clarity.

[17:2]  ⁶ tn Although the word διελέξατο (dielexato; from διαλέγομαι, dialegomai) is frequently translated “reasoned,” “disputed,” or “argued,” this sense comes from its classical meaning where it was used of philosophical disputation, including the Socratic method of questions and answers. However, there does not seem to be contextual evidence for this kind of debate in Acts 17:2. As G. Schrenk (TDNT 2:94-95) points out, “What is at issue is the address which any qualified member of a synagogue might give.” Other examples of this may be found in the NT in Matt 4:23 and Mark 1:21.