Philippians 3:2

2 Corinthians 11:13 NIV
For such people are false apostles, deceitful workers, masquerading as apostles of Christ.

Isaiah 56:10-11 NIV
Israel’s watchmen are blind, they all lack knowledge; they are all mute dogs, they cannot bark; they lie around and dream, they love to sleep. They are dogs with mighty appetites; they never have enough. They are shepherds who lack understanding; they all turn to their own way, they seek their own gain.

Titus 1:16 NIV
They claim to know God, but by their actions they deny him. They are detestable, disobedient and unfit for doing anything good.