You never read the bible. Your ignorance is God like though.
“The slave is the owner’s property” (Exod 21:21)
Slaves could be beaten (Exod 21:20-21; 1 Pet 2:18-20)
Slaves could be taken as concubines (Gen 16:3-4; Exod 21:8-11) or even raped without serious consequence (Lev 19:20-22).