1 Corinthians 9:19-23; 2 Corinthians 11:23-27; 2 Corinthians 11:5; 2 Corinthians 12:15; 2 Corinthians 4:5; Acts 20:34; Acts 20:35; Luke 22:26; Mark 9:33-35; Matthew 18:4; Romans 1:14