“When they heard Paul
Even more quiet.”
ἀκούσαντες δὲ ὅτι τῇ Ἑβραΐδι διαλέκτῳ προσεφώνει αὐτοῖς μᾶλλον παρέσχον ἡσυχίαν
The author of Acts indicated that when they heard (ἀκούσαντες δὲ) Paul addressing them (προσεφώνει αὐτοῖς) in the Hebrew dialect (τῇ Ἑβραΐδι διαλέκτῳ), they became even more quiet (μᾶλλον παρέσχον ἡσυχίαν). When Paul began to speak in Aramaic or the Hebrew dialect, they became very quiet. Have you ever been able to quiet a crowd?