If you store bread in the fridge the bread will last only a few days before the bread dries out and goes stale and moldy.
Bread is best kept either in a bread box or on the counter or in the pantry at room temperature which will make the bread last longer.
Bread when kept at room temperature such as on the counter, pantry etc will last from 5 to 7 days before it goes stale and starts to mold.
If the bread has a bit of mold on it then you can remove the moldy part of the bread and still safely eat the rest of the bread without a problem.