Although the stay of Paul and Silas was brief in Thessalonica, God planted a seed in the hearts of the saints. Later, Paul wrote to them: "For this cause also thank we God without ceasing, because, when ye received the word of God which ye heard of us, ye received it NOT as the word of men, but as it is in truth, the word of God, which effectually worketh also in you that believe." (1 Thessalonians 2:13)