Micah 7:5
Put no trust in a neighbor; have no confidence in a friend; guard the doors of your mouth from her who lies in your arms;
Jeremiah 9:4
Let everyone beware of his neighbor, and put no trust in any brother, for every brother is a deceiver, and every neighbor goes about as a slanderer.
Judges 16:5-20
And the lords of the Philistines came up to her and said to her, "Seduce him, and see where his great strength lies, and by what means we may overpower him, that we may bind him to humble him. And we will each give you 1,100 pieces of silver."
Job 6:14-15
"He who withholds kindness from a friend forsakes the fear of the Almighty.
Psalm 118:8-9
It is better to take refuge in the LORD than to trust in man.
Matthew 10:16
"Behold, I am sending you out as sheep in the midst of wolves, so be wise as serpents and innocent as doves.