Then he called for a light, and sprang in, and came trembling, and fell down before Paul and Silas, He called for a light - That he might see how things stood, and whether the words of Paul were true; for on this his personal safety depended.
Came trembling - Terrified by the earthquake, and feeling the danger to which his own life was exposed.
Fell down before Paul and Silas - The persons whom a few hours before he, according to his office, treated with so much asperity, if not cruelty, as some have supposed; though, by the way, it does not appear that he exceeded his orders in his treatment of the apostles.