A.T. Robertson Commentary 2 Corinthians 11:15

"It is no great thing therefore if his ministers also fashion themselves as ministers of righteousness, whose end shall be according to their works." — 2 Corinthians 11:15 (ASV)

As ministers of righteousness (ως διακονο δικαιοσυνης). Jesus (John 10:1–21) terms these false shepherds thieves and robbers. It is a tragedy to see men in the livery of heaven serve the devil.