Regarding the place of Torah (the law of Moses) in our lives, would it be appropriate to say that we “serve the law?” Do you … serve the law?
I suppose most claiming Christ today would passionately object, finding such a mindset legalistic, perhaps even dangerous, opposed to a life of faith and living by the Spirit. Yet Paul says exactly this: “With the mind I myself serve the law of God.” (Ro 7:25) What does he mean?
To serve something is to live our lives in alignment with it, to obey and respect its intent. The law of God would be any precepts, instructions or commands revealed by God, which would certainly include all of Torah. Paul is thus intending to understand and obey Torah as well as he’s able; he observes it with his whole heart (Ps 119:34), so this mindset must be perfectly aligned with living by faith in the Spirit; they go together.
Everything about us that isn’t physical is spiritual, including our ability to think and reason, which is our mind, and also Torah itself. (Ro 7:14) Matter and energy are unconscious, so any conscious choice is by definition a spiritual act, and any act opposed to Torah is a sinful one (1Jn 3:4); it can only be a life pattern in those who don’t know God. (1Jn 2:4)
We may choose to act based on our own will, or defer to someone else’s, and this is where I think most get confused — thinking that unless we’re being guided by another spirit than our own, that we aren’t spiritual. The problem here is that there are unholy spirits constantly trying to deceive us, and it isn’t easy to tell the difference.
But God tells us to be constantly ready for strenuous mental activity (1Pe 1:13) in our obedience to Him. (1Pe 1:14-16) When the Holy Spirit leads us, He doesn’t generally direct us from outside of our will, but works within us to will and to do as His pleases. (Php 2:13) This activity is through our own wills and minds, something we’re not consciously aware of. When He does speak to us outside our wills, as an external voice, which is the rare exception, there will be no mistaking it: we will be able to stake our lives on the fact that God is speaking directly to us; there will be no doubt whatsoever.
Apart from this rare exception, walking in the Spirit in the life of faith is seeking to obey Torah as well as we can in our gifts and calling for the glory of God. He commands us to study it diligently so that we will rightly interpret and apply it. (2Ti 2:15)