Obviously, Jonah was lacking that gift of discernment when he prophesied to Nineveh; yet, the whole city repented as the fire (spirit of burning Isaiah 4:4; Luke 3:16) fell just as God had told him, to tell them, that it would be overthrown (Jonah 3:4). Jonah didn't have the discernment to see it fall; it was happening to those all around him and he didn't see it, as he sat in embarrassed self-pity. (Testimonies to Ministers and Gospel Workers, Page 507.1). We, in our turn, must not be deterred, but follow His commission, whether they will hear, or forbear.
He in whom Christ dwells has within himself the fountain of blessing.... From this source he may draw strength and grace sufficient for all his needs...He who drinks of the living water becomes a fountain of life. The receiver becomes a giver. The grace of Christ in the soul is like a spring in the desert, welling up to refresh all, and making those who are ready to perish eager to drink of the water of life. God's Amazing Grace 119.3, 4
Hebrews 10:16, 17 This is the covenant that I will make with them after those days, saith the Lord, I will put my laws into their hearts, and in their minds will I write them; And their sins and iniquities will I remember no more.
The Law of God (including the 4th Commandment); the LOVE of God, written in the heart by God, IS transformation of character, the fruit of oneness with God. God remembers their 'sins and iniquities...no more" not only because they are covered by the blood of Christ, but; by the Grace of His indwelling Spirit, as testified to by the fruits of His Spirit, they sin no more.
From those who ... boldly witness for Christ, men will hear sacred truth that never before had heard it. In some hearts the seed will take roots. The converting power of God will win souls from darkness to light. Some of the very men on the judgment seat, lawyers and jurors, will embrace the truth, and in their turn will confess Christ before kings and rulers.—Manuscript 40, 1897, 13. (“Christ or Barabbas,” undated.)
Looking for and hasting unto the coming of the day of God... 2 Peter 3:12
We MUST "...cut to the chase very quickly" with each individual we meet:
...when we turn toward the Sun of Righteousness, when we come in touch with Christ, the whole soul is aglow with the brightness of the divine presence.
As Christ is the channel for the revelation of the Father, so we are to be the channel for the revelation of Christ. While our Saviour is the great source of illumination, forget not, O Christian, that He is revealed through humanity. God's blessings are bestowed through human instrumentality. Christ Himself came to the world as the Son of man. Humanity, united to the divine nature, must touch humanity. The church of Christ, every individual disciple of the Master, is heaven's appointed channel for the revelation of God to men. Angels of glory wait to communicate through you heaven's light and power to souls that are ready to perish. Shall the human agent fail of accomplishing his appointed work? Oh, then to that degree is the world robbed of the promised influence of the Holy Spirit! Thoughts From the Mount of Blessings 40.1, 2
Inasmuch as ye have done it unto one of the least of these my brethren, ye have done it unto me. Matthew 25:40
The influence of the Holy Spirit is the life of Christ in the soul. We do not see Christ and speak to Him, but His Holy Spirit is just as near us in one place as in another. It works in and through every one who receives Christ. Those who know the indwelling of the Spirit reveal the fruits of the Spirit—love, joy, peace, long-suffering, gentleness, goodness, faith (Manuscript 41, 1897).
So; with all the fruit of the Spirit, we are to reach out to the faithful, God-fearing Sunday-keeper, and share "the rest" of the Gospel and Doctrine of Christ, portraying to them through the Christ-life, the Sabbath truth, more fully. Their keeping of the Sunday, in itself, reveals their lace of understanding as to the whole duty of man.
Let us hear the conclusion of the whole matter: Fear God, and keep his commandments: for this is the whole duty of man. Ecclesiastes 12:13