1. Having treated, in the preceding lectures, of the ideas, of the character, perfections and attributes of God, we next proceed to treat of the knowledge which persons must have, that the course of life which they pursue is according to the will of God, in order that they may be enabled to exercise faith in him unto life and salvation. 2. This knowledge supplies an important place in revealed religion; for it was by reason of it that the ancients were enabled to endure as seeing him who is invisible. An actual knowledge to any person that the course of life which he pursues is according to the will of God, is essentially necessary to enable him to have that confidence in God, without which no person can obtain eternal life. It was this that enabled the ancient saints to endure all their afflictions and persecutions, and to take joyfully the soiling of their goods, knowing (not believing merely,) that they had a more enduring substance. Heb. 10:34. 3. Having the assurance that they were pursuing a course which was agreeable to the will of God, they were enabled to take, not only the spoiling of their goods, and the wasting of their substance, joyfully, but also to suffer death in its most horrid forms; knowing, (not merely believing,) that when this earthly house of their tabernacle was dissolved, they had a building of God, a house not made with hands, eternal in the heavens. Second Cor. 5:1. 4. Such was and always will be the situation of the saints of God, that unless they have an actual knowledge that the course they are pursuing is according to the will of God, they will grow weary in their minds and faint; for such has been, and a ways will be, the opposition in the hearts of unbelievers and those that know not God against the pure and unadulterated religion of heaven, (the only thing which ensures eternal life,) that they will persecute, to the uttermost, all that worship God according to his revelations, receive the truth in the love of it, and submit themselves to be guided and directed by his will, and drive them to such extremities that nothing short of an actual knowledge of their being the favorites of heaven, and of their having embraced that order of things which God has established for the redemption of man, will enable them to exercise that confidence in him, necessary for them to overcome the world, and obtain that crown of glory which is laid up for them that fear God. 5. For a man to lay down his all, his character and reputation, his honor and applause, his good name among men, his houses, his lands, his brothers and sisters, his wife and children, and even his own life also, counting all things but filth and dross for the excellency of the knowledge of Jesus Christ, requires more than mere belief, or supposition that he is doing the will of God, but actual knowledge: realizing, that when these sufferings are ended he will enter into eternal rest; and be a partaker of the glory of God.