Master
Never once in the Gospel record does Judas Iscariot call Jesus "Lord." He was the first Arian amongst the professed followers of Jesus. No one can in reality say that Jesus is Lord, but by the Holy Ghost, (1 Corinthians 12:3) but it is possible to use the term as an empty formality without believing the Lordship of Christ; (Matthew 7:21); (Matthew 25:11); (Matthew 25:12).