2 Timothy 4:15

of whom also do thou beware, for greatly hath he stood against our words;

Matthew 10:16-17

'Lo, I do send you forth as sheep in the midst of wolves, be ye therefore wise as the serpents, and simple as the doves.

Philippians 3:2

look to the dogs, look to the evil-workers, look to the concision;

2 Timothy 3:8

and, even as Jannes and Jambres stood against Moses, so also these do stand against the truth, men corrupted in mind, disapproved concerning the faith;

Treasury of Scripture Knowledge

Summary

Of whom be thou ware also; for he hath greatly withstood our words.

Bible References

Be

Matthew 10:16
'Lo, I do send you forth as sheep in the midst of wolves, be ye therefore wise as the serpents, and simple as the doves.
Philippians 3:2
look to the dogs, look to the evil-workers, look to the concision;