Commentaries:
Robertson's Word Pictures (NT)
Powerfully (eutonwv). Adverb from eutonov (eu, well, teinw, to stretch), well-strung, at full stretch.
Confuted (diakathlegxeto). Imperfect middle of the double compound verb dia-kat-elegxomai, to confute with rivalry in a contest, here alone. The old Greek has dielegxw, to convict of falsehood, but not this double compound which means to argue down to a finish. It is the imperfect tense and does not mean that Apollos convinced these rabbis, but he had the last word.
Publicly (dhmosiai). See Acts 5:18; Acts 16:37. In open meeting where all could see the victory of Apollos.
Shewing (epideiknuv). Present active participle of epideiknumi, old verb to set forth so that all see.
By the Scriptures (dia twn grafwn). In which Apollos was so "mighty" (verse Acts 18:24) and the rabbis so weak for they knew the oral law better than the written (Mark 7:8-12).
That Jesus was the Christ (einai ton Xriston Ihsoun). Infinitive and the accusative in indirect assertion. Apollos proclaims the same message that Paul did everywhere (Acts 17:3). He had not yet met Paul, but he had been instructed by Priscilla and Aquila. He is in Corinth building on the foundation laid so well by Paul (I Corinthians 3:4-17). Luke has here made a brief digression from the story of Paul, but it helps us understand Paul better There are those who think that Apollos wrote Hebrews, a guess that may be correct.
Other Robertson's Word Pictures (NT) entries containing Acts 18:28:
Luke 23:10
Revelation 2:1
DISCLAIMER: Church of the Great God (CGG) provides these resources to aid the individual in studying the Bible. However, it is up to the individual to "prove all things, and hold fast to that which is good" (I Thessalonians 5:21). The content of these resources does not necessarily reflect the views of CGG. They are provided for information purposes only.