For they themselves report concerning us what kind of a reception we had from you; and how you turned to God from idols, to serve a living and true God,
To serve the living and true God - He is called the “living God” in opposition to idols - who are represented as dead, dumb, deaf, and blind; compare Psalms 135:15-17; notes, Isaiah 44:10-17; Matthew 16:16; John 5:26; Acts 14:15.