Micah 7:5
Do not rely on a friend; do not trust a companion! Don't even share secrets with the one who lies in your arms!
Jeremiah 9:4
Everyone must be on his guard around his friends. He must not even trust any of his relatives. For every one of them will find some way to cheat him. And all of his friends will tell lies about him.
Judges 16:5-20
The rulers of the Philistines went up to visit her and said to her, "Trick him! Find out what makes him so strong and how we can subdue him and humiliate him. Each one of us will give you eleven hundred silver pieces."
Job 6:14-15
"To the one in despair, kindness should come from his friend even if he forsakes the fear of the Almighty.
Psalm 118:8-9
It is better to take shelter in the Lord than to trust in people.
Matthew 10:16
"I am sending you out like sheep surrounded by wolves, so be wise as serpents and innocent as doves.