I received this question after teaching of about the Sign of the Covenant. An interesting way to look at it.
What do you think?
Please tell me is you think i’m pressing the bible text with these thoughts. I think the Holy Spirit was impressing upon me that 1) Abraham was, in circumcision, making himself a living sacrifice in that in response to God’s directive he and his chosen people were offering themselves to the covenant promise wholeheartedly. They were self-purifying before there was a sacrificial system, but using their personal body as a foreshadowing of what Jesus would later do. Abraham was preparing himself to beget God’s chosen seed in Isaac. And he and his household were in faith and deed commiting an act in belief that set them apart as God’s chosen. I realize that Jesus was the first and only man to offer His body to God to show personal dedication to the will of God, and the initiation of the New Covanant started as a response to that (Heb. 5,10,16-20, esp. 20). Do you think circumcision could be an OT foreshadowing of Jesus offering His body to establish God’s chosen people?