The Holy Spirit strives with every man. It is the voice of God speaking to the soul.
No human reasoning of the most learned man can define the operations of the Holy Spirit upon human minds and characters, yet they can see the effects upon the life and actions....
Though we cannot see the Spirit of God, we know that men who have been dead in trespasses and sins become convicted and converted under its operations. The thoughtless and wayward become serious. The hardened repent of their sins, and the faithless believe. The gambler, the drunkard, the licentious, become steady, sober, and pure. The rebellious and obstinate become meek and Christlike.
When we see these changes in the character, we may be assured that the converting power of God has transformed the entire man. We saw not the Holy Spirit, but we saw the evidence of its work on the changed character of those who were hardened and obdurate sinners. As the wind moves in its force upon the lofty trees and brings them down, so the Holy Spirit can work upon human hearts, and no finite man can circumscribe the work of God....
You cannot see the operating agency, but you can see its effects.
Those who not only hear but do the words of Christ, make manifest in character the operation of the Holy Spirit. The result of the internal operation of the Holy Spirit is demonstrated in the outward conduct. The life of the Christian is hid with Christ in God, and God acknowledges those who are His, declaring, “Ye are my witnesses.” They testify that divine power is influencing their hearts and shaping their conduct. Their works give evidence that the Spirit is moving upon the inward man; those who are associated with them are convinced that they are making Jesus Christ their pattern.
Those who are in connection with God are channels for the power of the Holy Spirit.... The inner life of the soul will reveal itself in the outward conduct. HP 22
We may commune with God in our hearts; we may walk in companionship with Christ. Pr 188
"The wind bloweth where it listeth, and thou hearest the sound thereof, but canst not tell whence it cometh, and whither it goeth: so is every one that is born of the Spirit." John 3:8 (King James Version)