Some might have thought Paul was afraid to visit because he sent Timothy. However, Paul was very busy with his work in Ephesus at that time (Acts 19:8–20; see study note on Acts 19:10). He planned to visit soon (see 1 Corinthians 16:5–9; Acts 19:21–22; 20:1–3; compare 2 Corinthians 1:15–2:4) and would face those who opposed him. He would show they were just talkers. His actions and words would prove God's power (see also 1 Corinthians 2:4).