Hand of the Lord. See Acts 11:21; Ex. 9:3; Judges 2:15. Sergius Paulus’s inquiries about the Jewish faith were misled by Elymas’s pretensions. The Lord’s hand was about to fall upon Elymas.
Thou shalt be blind. A fitting judgment for one who fought against the truth’s light. Paul’s own blindness was inward illumination (Acts 9:9). Elymas’s blindness was temporary, intended as remedy.
For a season. The temporary blindness implies punishment and intended correction. Elymas’s sin was less severe than Ananias and Sapphira’s, whose conduct threatened the church.
A mist and a darkness. The order indicates gradual sight loss: eyes clouded, then blindness. Luke’s precision reflects his medical training (Col. 4:14; Acts 9:18).
To lead him. Elymas had misled others; now he must seek guidance himself, groping, likely wishing to conceal how Paul’s words came true.