Cross reference
2 Timothy 4:15
15 But be on the watch for him, for he was violent in his attacks on our teaching.
2 Timothy 3:8
8 And as James and Jambres went against Moses, so do these go against what is true: men of evil minds, who, tested by faith, are seen to be false.
Matthew 10:16-17
16 See, I send you out as sheep among wolves. Be then as wise as snakes, and as gentle as doves.
17 But be on the watch against men: for they will give you up to the Sanhedrins, and in their Synagogues they will give you blows;
Philippians 3:2
2 Be on the watch against dogs, against the workers of evil, against those of the circumcision:
