Denial of Christ in Doctrine
Source: TTT
Mark 8:38
If anyone is ashamed of Me and My words in this adulterous and sinful generation, the Son of Man will also be ashamed of him when He comes in His Father’s glory with the holy angels.”
2 Timothy 1:8
So do not be ashamed of the testimony of our Lord, or of me, His prisoner. Instead, join me in suffering for the gospel by the power of God.