Analysis of information sources in references of the Wikipedia article "Catholic Church and slavery" in English language version.
{{cite book}}: ISBN / Date incompatibility (help)God ... did not intend that His rational creature, who was made in His image, should have dominion over anything but the irrational creation - not man over man, but man over the beasts ... the condition of slavery is the result of sin ... It [slave] is a name, therefore, introduced by sin and not by nature ... circumstances [under which men can become slaves] could never have arisen save [i.e. except] through sin ... The prime cause, then, of slavery is sin which brings man under the dominion of his fellow [sinful man] ... But by nature, as God first created us, no one is the slave either of man or of sin.
God ... did not intend that His rational creature, who was made in His image, should have dominion over anything but the irrational creation - not man over man, but man over the beasts ... the condition of slavery is the result of sin ... It [slave] is a name .. introduced by sin and not by nature ... circumstances [under which men could become slaves] could never have arisen save [i.e. except] through sin ... The prime cause, then, of slavery is sin, which brings man under the dominion of his fellow [sinful man] ... But by nature, as God first created us, no one is the slave either of man or of sin.