You, my brothers and sisters, were called to be free. But do not use your freedom to indulge the flesh[a]; rather, serve one another humbly in love. For the entire law is fulfilled in keeping this one command: “Love your neighbor as yourself.”[b] If you bite and devour each other, watch out or you will be destroyed by each other.
So I say, walk by the Spirit, and you will not gratify the desires of the flesh. For the flesh desires what is contrary to the Spirit, and the Spirit what is contrary to the flesh. They are in conflict with each other, so that you are not to do whatever[c] you want. But if you are led by the Spirit, you are not under the law.
Scripture makes no bones about it: There’s a flesh/Spirit conflict. You can see it throughout, and Paul spells it out in his letter to the Galatians. The flesh often means all that is opposed to God in the world. It is set in its ways, in an underlying rebellion against God which might be disguised as anything other than that. The Spirit is the Holy Spirit of God in Christ, actually a person within the Triunity of God: Father, Son and Spirit.
Just try to be led by the Spirit, and keep at it, and you’ll run up against the flesh somewhere at some point. Either those “in the flesh” will just ignore you as irrelevant, or they’ll challenge you directly or indirectly. With some that will be pure opposition, but with many others it can be a mix. They’ll regret their weakness or at least wonder over it, and the Spirit might well be at work in their lives for something much better. Only God knows all that’s going on under the surface. We need to hold our ground, and seek to walk and be led by the Spirit.
Of course we’re not always going to get it right ourselves. After all, who knows what it actually means to walk by the Spirit? I mean, we might actually be able to biblically or theologically describe or put some definition on it. But when it comes to actual life, we can’t have a handle on it ourselves. It is something by prayer and faith we seek to practice.
But again, make no mistake about it, when we do so we’ll run up against “the flesh.” That will be present, and we might as well expect it, so that we can be prepared for it. But the only preparation and follow through for us is simply to continue to walk by the Spirit. Continuing in that “way” in and through Jesus.