Micah 7:5
Believe ye not in a companion, put not confidence in a familiar friend: keep the doors of thy mouth from her that lieth in thy bosom.
Jeremiah 9:4
Take ye heed every one of his friend, and confide not in any brother; for every brother only supplanteth, and every friend goeth about with slander.
Judges 16:5-20
And the lords of the Philistines came to her and said to her, "Entice him, and see wherein his great strength lies, and by what means we may overpower him, that we may bind him to subdue him; and we will each give you eleven hundred pieces of silver."
Job 6:14-15
For him that is fainting kindness is meet from his friend; or he forsaketh the fear of the Almighty.
Psalm 118:8-9
It is better to trust in Jehovah than to put confidence in man;
Matthew 10:16
Behold, I send you as sheep in the midst of wolves; be therefore prudent as the serpents, and guileless as the doves.