The fundamental gift you are called to cherish in the faithful entrusted to your pastoral care is that of divine filiation; in other words, the fact that everyone participates in Trinitarian communion. Baptism, which makes men and women 'children in the Son' and members of the Church, is the root and source of all other charismatic gifts. Through your ministry of sanctification, you educate the faithful to participate with increasing intensity in the priestly, prophetic and regal office of Christ, helping them to build the Church, actively and responsibly, according to the gifts they have received from God.(VIS September 15, 2011)
Baptism, however, is not what makes men and women "children in the Son." Instead, the Scriptures teach us that the adoption of sons comes by faith in Christ, through the new birth:
But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name: which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.
1 John 5:1 Whosoever believeth that Jesus is the Christ is born of God: and every one that loveth him that begat loveth him also that is begotten of him.
For as many as are led by the Spirit of God, they are the sons of God. For ye have not received the spirit of bondage again to fear; but ye have received the Spirit of adoption, whereby we cry, Abba, Father. The Spirit itself beareth witness with our spirit, that we are the children of God: and if children, then heirs; heirs of God, and joint-heirs with Christ; if so be that we suffer with him, that we may be also glorified together.
Now I say, That the heir, as long as he is a child, differeth nothing from a servant, though he be lord of all; but is under tutors and governors until the time appointed of the father. Even so we, when we were children, were in bondage under the elements of the world: but when the fulness of the time was come, God sent forth his Son, made of a woman, made under the law, to redeem them that were under the law, that we might receive the adoption of sons. And because ye are sons, God hath sent forth the Spirit of his Son into your hearts, crying, Abba, Father. Wherefore thou art no more a servant, but a son; and if a son, then an heir of God through Christ.
Rome's sacerdotalism is wrong. It is not by baptism that we are made sons. It is because we are sons that we receive baptism!
As the Westminster Confession of Faith puts it:
All those that are justified, God vouchsafes, in and for His only Son Jesus Christ, to make partakers of the grace of adoption, by which they are taken into the number, and enjoy the liberties and privileges of the children of God, have His name put upon them, receive the spirit of adoption, have access to the throne of grace with boldness, are enabled to cry, Abba, Father, are pitied, protected, provided for, and chastened by Him as by a Father: yet never cast off, but sealed to the day of redemption; and inherit the promises, as heirs of everlasting salvation.(WCF, Chapter XII "Adoption") - TurretinFan