“We remember the fish that we ate in Egypt for free.”
~ Numbers 11:5

Bored with eating manna twice a day, the Israelites complained.

But slaves work for their food, so what was free in Egypt?

Their nostalgia wasn’t on the fish but the lack of strings attached to it. As slaves in Egypt their work paid for their food, so they weren’t indebted to their masters. The manna, however, was given free so they became morally-obligated to God.

The desire to not feel indebted is so powerful that people prefer slavery over freedom!