Commentaries:
Robertson's Word Pictures (NT)
For indeed we are in danger to be accused concerning this day's riot (kai gar kinduneuomen egkaleisqai stasewv peri thv shmeron). The text is uncertain. The text of Westcott and Hort means "to be accused of insurrection concerning today's assembly." The peril was real. Kinduneuomen, from kindunov, danger, peril. Old verb, but in the N.T. only here and Luke 8:23; I Corinthians 15:30.
There being no cause for it (mhdenov aitiou uparxontov). Genitive absolute with aitiov, common adjective (cf. aitia, cause) though in N.T. only here and Hebrews 5:9; Luke 23:4, Luke 23:14, Luke 23:22.
And as touching it (peri ou). "Concerning which." But what? No clear antecedent, only the general idea.
Give an account of this concourse (apodounai logon peri thv sustrofhv tauthv). Rationem reddere. They will have to explain matters to the proconsul. Sustrofh (from sun, together, strefw, to turn) is a late word for a conspiracy (Acts 23:12) and a disorderly riot as here (Polybius). In Acts 28:12 sustrefw is used of gathering up a bundle of sticks and of men combining in Matthew 17:22. Seneca says that there was nothing on which the Romans looked with such jealousy as a tumultuous meeting.
Other Robertson's Word Pictures (NT) entries containing Acts 19:40:
Luke 23:4
Acts 15:2
Acts 19:38
Acts 23:7
Acts 23:12
Acts 26:2
Romans 8:33
Hebrews 5:9
1 Peter 4:5
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