The preparations of the heart belong to man, but the answer of the tongue, is from the LORD.
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Augustine of Hippo
AD 430
Assuredly, as to what is written, “The preparation of the heart is man’s part, and the answer of the tongue is from the Lord,” they are misled by an imperfect understanding, so as to think that to prepare the heart—that is, to begin good—pertains to people without the aid of God’s grace. Be it far from the children of promise thus to understand it! Against Two Letters of the Pelagians