Opening the Door to the Adversary
Selected Messages Book 1, pg. 122.

The adversary of souls is not permitted to read the thoughts of men; but he is a keen observer, and he marks the words; he takes account of actions, and skillfully adapts his temptations to meet the cases of those who place themselves in his power. If we would labor to repress sinful thoughts and feelings, giving them no expression in words or actions, Satan would be defeated; for he could not prepare his specious temptations to meet the case."

"But let patience have her perfect work, that ye may be perfect and entire, wanting nothing." If you feel that you lack wisdom in this, plead the promise of God. He says, "If any of you lack wisdom, let him ask of God, that giveth to all men liberally, and upbraideth not; and it shall be given him. But let him ask in faith, nothing wavering." Come to God with all your needs. Don't go to others with your trials and temptations; God alone can help you. If you fulfill the conditions of God's promises, the promises will be fulfilled to you. If your mind is stayed upon God, you will not go from a state of ecstasy to the valley of despondency when trial and temptation come upon you. You will not talk doubt and gloom to others. You will not say, "I do not know about this or that. I do not feel happy. I am not sure that we have the truth." You will not do this, for you will have an anchor to the soul both sure and steadfast. When we talk discouragement and gloom, Satan listens with fiendish joy; for it pleases him to know that he has brought you into his bondage. Satan cannot read our thoughts, but he can see our actions, hear our words; and from his long knowledge of human family, he can shape his temptations to take advantage of our weak points of character. And how often do we let him into the secret of how he may obtain the victory over us. O that we might control our words and actions! How strong we would become if our words were of such an order that we would not be ashamed to meet the record of them in the day of judgment. How different will they appear in the day of God from what they seem when we utter them."

"Satan cannot read our thoughts, but he can see our actions, hear our words; and from his long knowledge of the human family, he can shape his temptations to take advantage of our weak points of character. And how often do we let him into the secret of how he may obtain the victory over us. Oh, that we might control our words and actions! How strong we would become if our words were of such an order that we would not be ashamed to meet the record of them in the day of judgment. How different will they appear in the day of God from what they seem when we utter them.-- Review and Herald, February 27, 1913" Messages to Young People, pg. 328.