My brethren and sisters, old and young, when you have an hour of leisure open the Bible and store the mind with its precious truths. When engaged in labor, guard the mind, keep it stayed upon God, talk less and meditate more. Remember, “Every idle word that men shall speak, they shall give account thereof in the day of judgment.” Matthew 12:36. Let your words be select; this will close a door against the adversary of souls. Let your day be entered upon with prayer; work as in God's sight. His angels are ever by your side, making a record of your words, your deportment, and the manner in which your work is done. CH 415.3
If you turn from good counsel and choose to associate with those who you have reason to suspect are not religiously inclined, although they profess to be Christians, you will soon become like them. You place yourself in the way of temptation, on Satan's battleground, and will, unless constantly guarded, be overcome by his devices. There are persons who have for some time made a profession of religion, who are, to all intents and purposes, without God and without a sensitive conscience. They are vain and trifling; their conversation is of a low order. Courtship and marriage occupy the mind to the exclusion of higher and nobler thoughts. CH 416.1
The associations chosen by the workers are determining their destiny for this world and for the next. Some who were once conscientious and faithful have sadly changed; they have disconnected from God, and Satan has allured them to his side. They are now irreligious and irreverent, and they have an influence upon others who are easily molded. Evil associations are deteriorating character; principle is being undermined. “He that walketh with wise men shall be wise: but a companion of fools shall be destroyed.” Proverbs 13:20. CH 416.2