Paul on the Spirit in Romans 8 (3)
For those who live according to the flesh set their minds on the things of the flesh, but those who live according to the Spirit, the things of the Spirit. Romans 8.5
What are the things of the Spirit?
The Word of God, and the life it brings us to in Jesus Christ (Jn. 6.63; 7.37-39). The power for being witnesses to Christ, living the life of Christ and proclaiming His resurrection (Acts 1.8). The process of sanctification, by which, from glory to glory, we are transformed into the image of Jesus Christ (2 Cor. 3.12-18). The fruit of the Spirit's indwelling presence (Gal. 5.22, 23). The gifts He supplies us for ministering in the Body and in the world (1 Cor. 12.7-11). His work of building the Church in unity and maturity in the Lord (Eph. 2.19-22; 4.11-16). His work of conviction in our souls (Jn. 16.8-11). The Law of God (Rom. 5.7). The wooing of the world (Gen. 6.3). The converting of sinners (Gal. 4.4).
These are the things of the Spirit, as also that sweet and holy communion He enjoys with the Father and the Son.
If we have been begotten by the Spirit into Christ and His Kingdom, we must set our minds on such things, think often and deeply about them, talk with one another, seek the presence of the Spirit in these ways, speak and teach and learn about His ways and works. We should sing of the things of the Spirit, pray about them, meditate on them, until the things of the Spirit become the guiding mindset for our lives at all times in all things.
At the very least, we need to begin each day setting our minds on the things of the Spirit, so that, increasingly, these are the things that enrich our soul, direct our steps, and empower our ministry.