In Numbers 19 we read of the sacrifice of the red heifer, an offering made without the camp, a key ingredient in the “water for impurity” used for ritual cleaning of those who have come into contact with the dead. This sacrifice was in a sense outside the law, being offered by Eleazar rather than the high priest. It symbolised some aspects of Christ’s sacrifice, being restricted to animals without blemish and not used as a farm animal. But it was imperfect – the work of producing the water for impurity itself made 3 others unclean until the evening.
In Galatians 5-6 the contrast between the sacrifice of Christ and the ritualised sacrifices of the law is highlighted. “For freedom Christ has set us free; stand firm therefore, and do not submit again to a yoke of slavery… neither circumcision nor uncircumcision counts for anything, but only faith working through love.” For all the special provisions under the law, it could never offer freedom.
But we are “led by the Spirit” rather than the law, exhorted to show the fruit of the Spirit in our lives, having “crucified the flesh with its passions and desires”. So let us “keep in step with the Spirit… and let us not grow weary of doing good, for in due season we will reap, if we do not give up”.