Apart From Christ, God is Hostile to Us

Calvin, in The Institutes (2.16.2):

If it had not been clearly stated that the wrath and vengeance of God and eternal death rested upon us, we would scarcely have recognized how miserable we would have been without God's mercy, and we would have underestimated the benefit of liberation.

For example, suppose someone is told: "If God hated you while you were still a sinner, and cast you off, as you deserved, a terrible destruction would have awaited you. But because he kept you in grace voluntarily, and of his own free favor, and did not allow you to be estranged from him, he thus delivered you from that peril." This man then will surely experience and feel something of what he owes to God's mercy. On the other hand, suppose he learns, as Scripture teaches, that he was estranged from God through sin, is an heir of wrath, subject to the curse of eternal death, excluded from all hope of salvation, beyond every blessing of God, the slave of Satan, captive under the yoke of sin, destined finally for a dreadful destruction and already involved in it; and that at this point Christ interceded as his advocate, took upon himself and suffered the punishment that, from God's righteous judgment, threatened all sinners; that he purged with his blood those evils which had rendered sinners hateful to God; that by this expiation he made satisfaction and sacrifice duly to God the Father; that as intercessor he has appeased God's wrath; that on this foundation rests the peace of God with men; that by this bond his benevolence is maintained toward them. Will the man not then be even more moved by all these things which so vividly portray the greatness of the calamity from which he has been rescued?

To sum up: since our hearts cannot, in God's mercy, either seize upon life ardently enough or accept it with the gratefulness we owe, unless our minds are first struck and overwhelmed by fear of God's wrath and by dread of eternal death, we are taught by Scripture to perceive that apart from Christ, God is, so to speak, hostile to us, and his hand is armed for our destruction; to embrace his benevolence and fatherly love in Christ alone.