Augustine of Hippo : All these sacraments may be possessed by the evil person; but to have charity and be an evil person is not possible. This therefore is the peculiar gift of the Spirit: he is the one and only fountain. To drink of it, God's Spirit calls you: God's Spirit calls you to drink of himself. — HOMILIES ON 1 John 7:6 John Chrysostom : If we pursue virtue, let us seek before all to gain for ourselves the approval that comes from God alone, and let us take no account of human praise. If we are lax, we should be afraid and humble our thinking with the thought of that judgment that cannot be bribed. Let us tremble at the approach of that dread day and the thought that our actions provoke blasphemy against God. — BAPTISMAL INSTRUCTIONS 6:10