“When we are laboring for the kingdom of God, we will have oil in our lamps, our light will shine and we will feel the testimony of the Spirit of God. On the other hand, if we set our hearts upon the things of the world and seek for the honors of men, we shall walk in the dark and not in the light. If we do not value our priesthood, and the work of this priesthood, the building up of the kingdom of God, the rearing of temples, the redeeming of our dead, and the carrying out of the great work unto which we have been ordained by the God of Israel?---if we do not feel that these things are more valuable to us than the things of the world, we will have no oil in our lamps, no light, and we shall fail to be present at the marriage supper of the Lamb” (Teachings of Presidents of the Church: Wilford Woodruff, p. 257-258).