sinus - These scriptures show that Christians aren't bound by the same laws. Now if you were to assert why god allowed these barbaric laws in the first place then we could probably find agreement there.
Romans 10:4
For Christ is the end of the Law, so that everyone exercising faith may have righteousness
Galatians 3:19-25; 4:4, 5;
Why, then, the Law? It was added to make transgressions manifest, until the seed should arrive to whom the promise had been made; and it was transmitted through angels by the hand of a mediator. 20 Now there is no mediator where only one person is concerned, but God is only one. 21 Is the Law, therefore, against the promises of God? May that never happen! For if a law had been given that was able to give life, righteousness would actually have been by means of law. 22 But the Scripture delivered up all things together to the custody of sin, that the promise resulting from faith toward Jesus Christ might be given to those exercising faith.
23 However, before the faith arrived, we were being guarded under law, being delivered up together into custody, looking to the faith that was destined to be revealed. 24 Consequently the Law has become our tutor leading to Christ, that we might be declared righteous due to faith. 25 But now that the faith has arrived, we are no longer under a tutor.