Matthew 13:11

To you, I say, who adhere to Me, and believe in Me. By the mystery of the kingdom of heaven, He intends the Gospel doctrine. To them, that is, to them that are without, and who would not believe on Him, the Scribes namely and Pharisees, and to the rest who continue in unbelief, it is not given. Let us then, with the disciples, come unto the Lord with a pure heart, that He may think us worthy to interpret to us the evangelic teaching; according to that, They who draw near to his feet, shall receive of his doctrine. (Deut. 33:3)

What then saith Christ? "Because it is given unto you," so He speaks, "to know the mysteries of the Kingdom of Heaven, but to them it is not given." But this He said, not bringing in necessity, or any allotment made causelessly and at random, but implying them to be the authors of all their own evils, and wishing to represent that the thing is a gift, and a grace bestowed from above. It by no means follows, however, because it is a gift, that therefore free will is taken away; and this is evident from what comes after. To this purpose, in order that neither the one sort may despair, nor the other grow careless, upon being told that "it is given," He signifies the beginning to be with ourselves.

What man, then, of sound mind can possibly suppose that they were ignorant of anything, whom the Lord ordained to be masters (or teachers), keeping them, as He did, inseparable (from Himself) in their attendance, in their discipleship, in their society, to whom, "when they were alone, He used to expound" all things which were obscure, telling them that "to them it was given to know those mysteries," which it was not permitted the people to understand? Was anything withheld from the knowledge of Peter, who is called "the rock on which the church should be built," who also obtained "the keys of the kingdom of heaven," with the power of "loosing and binding in heaven and on earth? " Was anything, again, concealed from John, the Lord's most beloved disciple, who used to lean on His breast to whom alone the Lord pointed Judas out as the traitor, whom He commended to Mary as a son in His own stead? Of what could He have meant those to be ignorant, to whom He even exhibited His own glory with Moses and Elias, and the Father's voice moreover, from heaven? Not as if He thus disapproved of all the rest, but because "by three witnesses must every word be established.