Just a note.
Since we are talking about strictly OT, we cannot be talking about Christians. You do not have Christians until you have the NT.
To square anything in the OT with the teachings of Christ, it would have to meet (at minimum) the test of the Good Samaritan; perhaps that could be done with a few passages.
IMO keeping the OT around is to provide an excuse for vengeance and desire that Christ leaves little or no recourse to.