The Predestination of the Saints/Gift of Perseverance

Care must be taken, brethren, beloved of God, that a man do not lift himself up in opposition to God, when he says that he does what God has promised. Was not the faith of the nations promised to Abraham, “and he, giving glory to God, most fully believed that what He promised He is able also to perform”? He therefore makes the faith of the nations, who is able to do what He has promised. Further, if God works our faith, acting in a wonderful manner in our hearts so that we believe, is there any reason to fear that He cannot do the whole; and does man on that account arrogate to himself its first elements, that he may merit to receive its last from God? Consider if in such a way any other result be gained than that the grace of God is given in some way or other, according to our merit, and so grace is no more grace. For on this principle it is rendered as debt, it is not given gratuitously; for it is due to the believer that his faith itself should be increased by the Lord, and that the increased faith should be the wages of the faith begun; nor is it observed when this is said, that this wage is assigned to believers, not of grace, but of debt. And I do not at all see why the whole should not be attributed to man—as he who could originate for himself what he had not previously, can himself increase what he had originated—except that it is impossible to withstand the most manifest divine testimony by which faith, whence piety takes its beginning, is shown also to be the gift of God: such as is that testimony that “God has dealt to every man the measure of faith;” and that one, “Peace be to the brethren, and love with faith, from God the Father, and the Lord Jesus Christ,” and other similar passages. Man, therefore, unwilling to resist such clear testimonies as these, and yet desiring himself to have the merit of believing, compounds as it were with God to claim a portion of faith for himself, and to leave a portion for Him; and, what is still more arrogant, he takes the first portion for himself and gives the subsequent to Him; and so in that which he says belongs to both, he makes himself the first, and God the second!