Bible Verses About cosigning

My son, if thou be surety for thy friend, if thou hast stricken thy hand with a stranger,

He that is surety for a stranger shall smart for it: and he that hateth suretiship is sure.

A man void of understanding striketh hands, and becometh surety in the presence of his friend.

The rich ruleth over the poor, and the borrower is servant to the lender.

Be not thou one of them that strike hands, or of them that are sureties for debts.