Job 41:4

Will he make a covenant with thee? And wilt thou take him for a servant for ever? 28. Thou understandest, As I. But it must be carefully observed, that this Leviathan makes a covenant with the Lord, in order to be counted His servant for ever. For in a covenant the wishes of parties who are at variance are fulfilled, that each attains to what it desires, and terminates its quarrels by the desired result. The ancient enemy, therefore, when kindled by the torch of his malice, is at variance with the purity of the Divine innocence, but even in his variance, disagrees not with His judgment. For he is ever maliciously seeking to tempt righteous men. But yet the Lord permits this to take place, either mercifully, or righteously. This liberty to tempt is, therefore, called a 'covenant,' wherein the desire of the tempter is effected, and yet the will of the righteous Dispenser is thereby wonderfully fulfilled. For, as we have lately said, the Lord frequently subjects His Elect to the tempter, in order to be instructed; just as after the barriers of Paradise, after the secrets of the third heaven, an angel of Satan was given to Paul that he might not be exalted by the greatness of the revelations. [2 Cor. 12, 7] But, as we have said before, it is so ordered in this very temptation, that they who could perish from pride, are, by being humbled, preserved from destruction. In the secret course, therefore, of the dispensation, by the iniquity of the devil being permitted to rage, the kindness of God is brought about in mercy. And from this covenant which he is said to make with God, he is rightly described as being taken for a servant. Because he obeys the commands ['nutibus'] of the heavenly grace, just as he exercises the wrath of his most evil will. He is, therefore, a servant by agreement, who when permitted to fulfil his own will, is restrained by the will of the counsel of heaven, so as willingly to tempt the Elect of God, as was before said, and unwittingly to prove them by his temptation. 29. But because he promotes in this life the interests of the Elect, as long as he is able to exercise in temptations the evil of his malice; but is said in this place to be taken by the Lord not merely as a servant under an agreement, but a servant for ever; we are compelled to investigate how we can prove that even after the close of the present life, he is a servant of the…