1 Corinthians 12:29

Are all apostles? Certainly not. Let each, therefore, be content with the position in which God has placed him in the Church, and with the grace that he has freely received from God, and thank God for all, and use the grace given him to God's glory and the good of the Church. Ver. 30 Have all the gifts of healing? S. Augustine says (Ep. 137) that " God, who divides to every man severally as He will, has not willed that miracles should be wrought in honour of every saint." It is not wonderful then that God should work miracles in this place, in this temple, at this or that image of the Holy Mother, or again that He should give one grace to one saint, another to another. Those, e.g., who invoke S. Antony He sets free from the plague, those S. Apollonia from toothache, those S. Barbara from sudden death, and from dying without confession; for, as the Apostle says, "God divides to every man severally as He will." So at the pool of Bethesda, and not elsewhere, God miraculously healed the impotent folk (S. John v. 2-4). So by the rod of Aaron, and of no one else, He worked miracles (Num. xvii. 8). So by the image of the brazen serpent, and of nothing else, He set free the Jews from the plague of fiery serpents (Num. xxi. 9).