The instruction given youth and children should not be of a superficial character. The teachers should do all in their power, as those standing in defense of the truth, to raise the standard high. There cannot be a worse thing done for your Sabbath school than to place as workers young men and young women who have shown great defects in their religious experience.... Do not lower the standard in your Sabbath schools. Your children must have as their teachers those whose example and influence will be a blessing rather than a curse. They must have constantly before them a high sense of the virtue, purity, and holiness which characterize the Christian life. Their ideas upon this point must not become confused; let none move unwisely or ignorantly in these matters. Give not, by voice or pen, encouragement to men or women who have not moral worth, whose past life shows a want of conscience and integrity. They may be sharp, witty, and intelligent; but if the heart is not imbued with the Spirit of God, and if they have not integrity of character, their influence points earthward, not heavenward, and will be detrimental, wherever they are, and in whatever they may engage. CSW 89.2
We are in great need of men and women who sense sin and hate iniquity; who have spiritual eyesight to discern the wants of the cause of God, and to work with a devoted, unselfish interest, keeping self ever hid in Jesus. We want young men of whom God can approve, who have practical godliness, who have consciences quick to feel and sense danger; men and women who will not exalt themselves, and will not seek to hide the deformity of the soul under a cloak of godliness; those who feel their weakness and imperfections of character, and who will hang their helpless souls upon Jesus Christ. Those who are self-confident, and think their way is above criticism, will show very imperfect work. Said the apostle, “When I am weak, then am I strong.” While sensing his weakness, he by faith laid hold of Jesus Christ and His grace.... CSW 90.1
Every Sabbath school worker who has passed from death unto life through the transforming grace of Christ, will reveal the deep moving of the Spirit of God upon his own heart. Those who attempt to direct others, who make a pretension of guiding souls to the path of holiness, while their own life is marked with pleasure loving, with pride, and with love of display, are unfaithful servants. Their life is not in accordance with their profession; their influence is an offense to God. They need a thorough conversion. Their hearts are so filled up with rubbish that there is no room for ennobling, elevated truth. The soul temple needs to be refined, purified, cleansed; for Satan rather than God is abiding in the heart. CSW 91.1
It is essential that care should be taken when placing men and women in positions of trust. You should know something in regard to their past life, and the character that has been developed. You would better double your classes under God-fearing workers than to multiply teachers whose influence is not in accordance with the holy character of truth which we profess, for their influence will be demoralizing.—Testimonies on Sabbath-School Work, 22-26. CSW 91.2