“First, if we seek for the paternal mercy and favor of God, we must turn our eyes to Christ, in whom alone the Father is well pleased (Mt. 3:17). When we seek for salvation, life, and a blessed immortality, to him also must we retake ourselves, since he alone is the fountain of life and the anchor of salvation, and the heir of the kingdom of heaven. Then what is the end of election, but just that, being adopted as sons by the heavenly Father, we may by his favor obtain salvation and immortality? How much soever you may speculate and discuss you will perceive that in its ultimate object it goes no farther. Hence, those whom God has adopted as sons, he is said to have elected, not in themselves, but in Christ Jesus (Eph. 1:4); because he could love them only in him, and only as being previously made partakers with him, honor them with the inheritance of his kingdom. But if we are elected in him, we cannot find the certainty of our election in ourselves; and not even in God the Father, if we look at him apart from the Son. Christ, then, is the mirror in which we ought, and in which, without deception, we may contemplate our election. For since it is into his body that the Father has decreed to ingraft those whom from eternity he wished to be his, that he may regard as sons all whom he acknowledges to be his members, if we are in communion with Christ, we have proof sufficiently clear and strong that we are written in the Book of Life. Moreover, he admitted us to sure communion with himself, when, by the preaching of the gospel, he declared that he was given us by the Father, to be ours with all his blessings (Rom. 8:32). We are said to be clothed with him, to be one with him, that we may live, because he himself lives. The doctrine is often repeated, ‘God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life,’ (John 3:16). He who believes in him is said to have passed from death unto life (John 5:24). In this sense he calls himself the bread of life, of which if a man eat, he shall never die (John 6:35). He, I say, was our witness, that all by whom he is received in faith will be regarded by our heavenly Father as sons. If we long for more than to be regarded as sons of God and heirs, we must ascend above Christ. But if this is our final goal, how infatuated is it to seek out of him what we have already obtained in him, and can only find in him? Besides, as he is the Eternal Wisdom, the Immutable Truth, the Determinate Counsel of the Father, there is no room for fear that any thing which he tells us will vary in the minutest degree from that will of the Father after which we inquire. Nay, rather he faithfully discloses it to us as it was from the beginning, and always will be. The practical influence of this doctrine ought also to be exhibited in our prayers. For though a belief of our election animates us to involve God, yet when we frame our prayers, it were preposterous to obtrude it upon God, or to stipulate in this way, ‘O Lord, if I am elected, hear me.’ He would have us to rest satisfied with his promises, and not to inquire elsewhere whether or not he is disposed to hear us. We shall thus be disentangled from many snares, if we know how to make a right use of what is rightly written; but let us not inconsiderately wrest it to purposes different from that to which it ought to be confined.”
– John Calvin (1509-1564), Institutes of the Christian Religion, III.xxiv.5.