Christians...
A large share of the Christian world have no right to call themselves Christians. Their habits, their extravagance, and general treatment of their own bodies are violations of physical law and contrary to the Bible. They are working out for themselves, in their course of life, physical suffering and mental and moral feebleness.
Confrontation, p58, Ellen G. White
It is more palatable to human nature to do penance than to renounce sin; it is easier to mortify the flesh by sackcloth and nettles and galling chains than to crucify fleshly lusts. Heavy is the yoke which the carnal heart is willing to bear rather than bow to the yoke of Christ.
The Great Controversy, p567, Ellen G. White
When the doctrine we accept kills sin in the heart, purifies the soul from defilement, bears fruit unto holiness, we may know that it is the truth of God. When benevolence, kindness, tenderheartedness, sympathy, are manifest in our lives; when the joy of right doing is in our hearts; when we exalt Christ, and not self, we may know that our faith is of the right order. "Hereby we do know that we know Him, if we keep His commandments." 1 John 2:3.
Thoughts from the Mount of Blessings, p146, Ellen G. White
The nearer man approaches to moral perfection, the keener are his sensibilities, the more acute is his perception of sin, and the deeper his sympathy for the afflicted.
The Great Controversy, p570, Ellen G. White
All Religions...
It is Satan's constant effort to misrepresent the character of God, the nature of sin, and the real issues at stake in the great controversy. His sophistry lessens the obligation of the divine law and gives men license to sin. At the same time he causes them to cherish false conceptions of God so that they regard Him with fear and hate rather than with love. The cruelty inherent in his own character is attributed to the Creator; it is embodied in systems of religion and expressed in modes of worship... By perverted conceptions of the divine attributes, heathen nations were led to believe human sacrifices necessary to secure the favor of Deity; and horrible cruelties have been perpetrated under the various forms of idolatry... and Christianity, ...like paganism, misrepresenting the character of God, has resorted to practices no less cruel and revolting.
The Great Controversy, p569, Ellen G. White