John Knox to his mother-in-law, 1553
Where God saith, “It repenteth me that I made Saul king,” he means not, that Saul at any time was a member of Christ’s body; but that he was a temporal officer, promoted of God, and yet most inobedient to his commandment; and therefore, that he would provide another to occupy his room: and that where he says, “I repent,” we must understand him to speak after the manner of men, attemperating himself to our understanding. For otherwise, God repenteth not; for before, his majesty knew the inobedience and rebellion of the wicked king. But, Sister, God the Father cannot repent, that he hath engrafted us members of Christ’s body; for that were to repent the honor of His own Son, yea, and his own good work in us.
Abide patiently, and give no place to the temptations of the adversary. Let him shoot his darts in his despite; but say you in your heart, The Lord is my defender, and therefore shall I not be confounded: dolor shall be but for a moment, but ever and ever shall we reign with Jesus our Lord; whose Holy Spirit be your comfort to the end.