Acts 2:8

E. g., while Peter was preaching in Greek the Parthian heard him in his native Chaldaic tongue, the Median, the Elamite and the Mesopotamian each heard in his own native dialect. And regardless of the language spoken by any One, every auditor heard in his own language. To human apprehension this was miraculous superfluity, as either of these miracles covered all the ground, and to our diagnosis precluded the necessity of the other. But in this double miracle we have a wonderful manifestation of the divine beneficence and the superabundance of redeeming grace (Romans 5:20). This double miracle largely accounts for the paradoxical efficiency of the gospel on that wonderful occasion when the world saw a brilliant prelude, adumbrating the ineffable glories of the coming kingdom.