Exodus 22:20-25; Exodus 22:29
"Whoever sacrifices to any god other than the LORD must be destroyed.
"Do not mistreat an alien or oppress him, for you were aliens in Egypt.
"Do not take advantage of a widow or an orphan.
If you do and they cry out to me, I will certainly hear their cry.
My anger will be aroused, and I will kill you with the sword; your wives will become widows and your children fatherless.
"If you lend money to one of my people among you who is needy, do not be like a moneylender; charge him no interest.
"Do not hold back offerings from your granaries or your vats. "You must give me the firstborn of your sons.