But what is the reason of these doubts, this darkness and unbelief? I answer: These men are not right with God. They are not dealing honestly and truly with their own souls. They have neglected to cultivate personal piety. They have not separated themselves from all selfishness and from sin and sinners. They have failed to study the self-denying, self-sacrificing life of our Lord and have failed to imitate His example of purity, devotion, and self-sacrifice. The sin which easily besets has been strengthened by indulgence. By their own negligence and sin they have separated themselves from the company of the divine Teacher, and He is a day’s journey in advance of them. They have for their company, the indolent, slothful, backsliding, unbelieving, irreverent, unthankful, unholy, and their attendants, the evil angels. What marvel that such are in darkness, or that they have doubts of doctrine? “If any man will do His will, he shall know of the doctrine.” John 7:17L. He shall know of a certainty in regard to this matter. This promise should put to flight all doubts and questionings. It is separation from Christ that brings doubts. He is followed by the earnest, honest, true, faithful, humble, meek, and pure, whom holy angels, clothed with the panoply of heaven, are sanctifying, enlightening, purifying, and guarding; for they are heaven bound.