Free and uncontrolled.

John Calvin has said:

“But who, I ask, can deny the right of God to have the free and uncontrolled disposal of his gifts, to select the nations which he may be pleased to illuminate, the places which he may be pleased to illustrate by the preaching of his word, and the mode and measure of progress and success which he may be pleased to give to his doctrine,—to punish the world for its ingratitude, by withdrawing the knowledge of his name for certain ages, and again, when he so pleases, to restore it in mercy? We see, then, that in the calumnies which the ungodly employ in this matter, to perplex the minds of the simple, there is nothing that ought to throw doubt either on the justice of God or the veracity of Scripture.”

(Calvin, John. Institutes of the Christian Religion, Grand Rapids, MI: Wm. B. Eerdmans Publishing, 1998, p. 399.)