Since it gets approval from God, slavery is morally right. In the system, the helpless and oppressed could be protected and trained better. God institutes and provides the slavery system in the kingdom of Israel, because it is better system than the other system for the benefit of Israel. God have given his sanction, so it is not sinful. Buck believes that slavery is incorporated in the Abrahamic Covenant. He says Abraham is a slaveholder and circumcises his slaves just like circumcises his own sons. Through the sign of circumcision, Abraham bind the slaves into the convenant and identify them with his family forever as slaves. Buck says other approval of salvery can be found in the Abrahamic covenant, decalogue and Mosaic law. Furthermore, Jesus and his apostles accept the slavery and do not intend to abolish it in the New