It is frequently the case that aged persons are unwilling to realize and acknowledge that their mental strength is failing. They shorten their days by taking care which belongs to their children. Satan often plays upon their imagination and leads them to feel a continual anxiety in regard to their money. It is their idol, and they hoard it with miserly care. They will sometimes deprive themselves of many of the comforts of life, and labor beyond their strength, rather than use the means which they have. In this way they place themselves in continual want, through fear that sometime in the future they shall want. RY 79.1
All these fears originate with Satan. He excites the organs which lead to slavish fears and jealousies which corrupt nobleness of soul and destroy elevated thoughts and feelings. Such persons are insane upon the subject of money. If they would take the position which God would have them, their last days might be their best and happiest. Those who have children in whose honesty and judicious management they have reason to confide, should let their children make them happy. Unless they do this, Satan will take advantage of their lack of mental strength and will manage for them. They should lay aside anxiety and burdens, and occupy their time as happily as they can, and be ripening up for heaven.—Testimonies for the Church 1:423, 424. RY 79.2