Micah 7:5
Put no trust in a friend; put no hope in a guide; keep the door of your mouth from her who lies in your bosom.
Jeremiah 9:4
Everyone beware of his neighbor, and do not trust any brother! For every brother will supplant his neighbor, and will walk with slanders.
Judges 16:5-20
And the lords of the Philistines came up to her, and said to her, Lure him and see where his great strength lies, and by what means we may prevail against him, so that we may tie him to afflict him. And each one of us will give you eleven hundred pieces of silver.
Job 6:14-15
To him who is afflicted, pity is due from his friend, but he forsakes the fear of the Almighty.
Psalm 118:8-9
It is better to trust in Jehovah than to trust in man.
Matthew 10:16
Behold, I send you out as sheep in the midst of wolves. Therefore be as wise as serpents and as harmless as doves.