Yes, it's legal.

Many individuals mistakenly believe that it's against the law to mark or inscribe on paper currency. However, this is a misconception. Rather than defacing U.S. currency, we are enhancing the appearance of dollar bills through decoration. There are three specific actions that are prohibited when it comes to paper currency:

1. Altering the denomination is strictly forbidden. For instance, it's illegal to add two zeros to a one-dollar bill and attempt to pass it off as a one-hundred-dollar bill.

2. Destroying currency by burning, shredding, or rendering it unfit for circulation is also prohibited.

3. Using paper currency for commercial advertising purposes is not allowed. For instance, if you own a Bagel shop, stamping "Eat at Joe's Bagels" on a dollar bill is not permitted.

However, it's important to note that we are imprinting the Gospel on the bills, not engaging in commercial advertising. Our intention is to keep these bills in circulation while conveying an important message, making this practice entirely legal!