John Calvin - The happiness which is promised to us in Christ belongs to the heavenly life

That the strength and utility of the kingdom of Christ cannot, as we have said, be fully perceived without recognising it as spiritual, is sufficiently apparent, even from this, that having during the whole course of our lives to war under the cross, our condition here is bitter and wretched. What then would it avail us to be ranged under the government of a heavenly King, if its benefits were not realised beyond the present earthly life? We must, therefore, know that the happiness which is promised to us in Christ does not consist in external advantages - such as leading a joyful and tranquil life, abounding in wealth, being secure against all injury, and having an affluence of delights, such as the flesh is wont to long for - but properly belongs to the heavenly life. As in the world the prosperous and desirable condition of a people consists partly in the abundance of temporal good and domestic peace, and partly in the strong protection which gives security against external violence; so Christ also enriches his people with all things necessary to the eternal salvation of their souls and fortifies them with courage to stand unassailable by all the attacks of spiritual foes. Whence we infer, that he reigns more for us than for himself, and that both within us and without us; that being replenished, in so far as God knows to be expedient, with the gifts of the Spirit, of which we are naturally destitute, we may feel from their first fruits, that we are truly united to God for perfect blessedness; and then trusting to the power of the same Spirit, may not doubt that we shall always be victorious against the devil, the world, and every thing that can do us harm. To this effect was our Saviour's reply to the Pharisees, "The kingdom of God is within you." "The kingdom of God cometh not with observation," (Luke 17: 21, 22.) It is probable that on his declaring himself to be that King under whom the highest blessing of God was to be expected, they had in derision asked him to produce his insignia. But to prevent those who were already more than enough inclined to the earth from dwelling on its pomp, he bids them enter into their consciences, for "the kingdom of God" is "righteousness, and peace, and joy in the Holy Ghost," (Rom. 14: 17.) These words briefly teach what the kingdom of Christ bestows upon us. Not being earthly or carnal, and so subject to corruption, but spiritual, it raises us even to eternal life, so that we can patiently live at present under toil, hunger, cold, contempt, disgrace, and other annoyances; contented with this, that our King will never abandon us, but will supply our necessities until our warfare is ended, and we are called to triumph: such being the nature of his kingdom, that he communicates to us whatever he received of his Father. Since then he arms and equips us by his power, adorns us with splendour and magnificence, enriches us with wealth, we here find most abundant cause of glorying, and also are inspired with boldness, so that we can contend intrepidly with the devil, sin, and death. In fine, clothed with his righteousness, we can bravely surmount all the insults of the world: and as he replenishes us liberally with his gifts, so we can in our turn bring forth fruit unto his glory.


- John Calvin (Institutes of the Christian Religion, 2.15.4)