His reputation for honesty was a guarantee that you could take to the bank.
Her track record of success made her a reliable source of information that you could take to the bank.
The company's long history of integrity made them a trustworthy partner that you could take to the bank.
His consistent performance over the years made him a dependable employee that you could take to the bank.
The evidence presented in court was a certainty that you could take to the bank.