1. Credit assumes the creditor has something of real value to lend. The Federal reserves credit is issued not on actual physical assets, but on paper that is backed fractionally on things of value. The Federal reserve does not hold equal value for its extended credit and never has. It was founded on the process (lie) of fractional reserves. The entire system relies on the belief that at no time will the credit issuer call in what is owed at any time and strip the actual 'reserves' on wich the credit is issued. To bad it does not work out that way in real life.

2. The holding out (offer) of credit does not create an obligation to use said credit. Congress can tell the Federal Reserve it needs a credit and promises to pay it back with goods and services at face value plus interest (the paper held in that promise to pay are BONDS. That "credit" is placed into the Federal Reserve banks and is then distributed to "endorsers" (people or companies who borrow that credit). Without the people endorsing/pledging their labor goods and services to "pay back" the loans, the 'credit on accounts would sit there and do nothing. Any "pay back" would simply be the Treasury returning the 'credit' to the Federal Reserve and getting its BONDS back. A paper for paper return to ZERO.

Whatever credit was actually used in the running of Government would have to be paid back by goods and services produced that year by Government itself, since nobody else endorsed it. (took the obligation to pay upon themselves).

Simply put, without YOU and me and everyone else endorsing the credit issued (in any form) and taking the obligation to "pay" it in goods and services, the only people using Federal Reserve credit or paying it back would be the Federal Government and its employees (the people directly benefiting from the contract), the way it is supposed to be.

All goods and services are "pledged" to the payment of the debt via endorsement of those using it. You endorse it, you agree to pay it back with goods and services at face value plus interest.