From the moment of Jesus' conception in the womb of Mary until his Resurrection, he was filled with the Holy Spirit. In biblical language, he was anointed by the Holy Spirit and thus established by God the Father as our high priest. As Risen Lord, he remains our high priest. . . . While all the baptized share in Christ's priesthood, the ministerial priesthood shares this through the Sacrament of Holy Orders in a special way.
Ordination to the priesthood is always a call and a gift from God. Christ reminded his Apostles that they needed to ask the Lord of the harvest to send laborers into the harvest. Those who seek priesthood respond generously to God's call using the words of the prophet, "Here I am, send me" (Is 6:8). This call from God can be recognized and understood from the daily signs that disclose his will to those in charge of discerning the vocation of the candidate.
Discernment basically means “hearing the call” and trying to figure out where God might be calling you to serve Him. It is a life-long process of growth and listening to how God moves the heart in a new way of service. It begins in one’s heart – but it also involves other people, especially in the Church. Examining yourself is a good way to begin discernment of priesthood. Here are some links to help those discerning:
Diocese of Dallas Vocations Office
Holy Trinity Seminary
St. Gabriel Vocations Support Dallas Vocations Awareness Program
Vocations Discernment USCCB Vocations Website
Serra Club USA
"Holy Orders is the sacrament through which the mission entrusted by Christ to his apostles continues to be exercised in the Church until the end of time…It includes three degrees of order: episcopate, presbyterate, and diaconate" (CCC 1536). Deacons, priest and bishops are essential to the Catholic Church because we believe that they continue the work begun by the apostles.
Since the beginning, the ordained ministry has been conferred and exercised in the following three degrees: that of bishops, that of presbyters, and that of deacons. The ministries conferred by ordination are irreplaceable for the organic structure of the Church: without the bishop, presbyters, and deacons, one cannot speak of the Church. (CCC 1593)
Ordination is the rite at which the Sacrament of Holy Orders is bestowed. The bishop confers the Sacrament of Holy Orders by the laying on of hands which confers on a man the grace and spiritual power to celebrate the Church’s sacraments.
The sacrament of Holy Orders is conferred by the laying on of hands followed by a solemn prayer of consecration asking God to grant the ordained the graces of the Holy Spirit required for his ministry. Ordination imprints an indelible sacramental character. (CCC 1597)
The Church confers the sacrament of Holy Orders only on baptized men (viri), whose suitability for the exercise of the ministry has been duly recognized. Church authority alone has the responsibility and right to call someone to receive the sacrament of Holy Orders. (CCC 1598)
In the Latin Church the sacrament of Holy Orders for the presbyterate is normally conferred only on candidates who are ready to embrace celibacy freely and who publicly manifest their intention of staying celibate for the love of God's kingdom and the service of men. (CCC 1599)
The Second Vatican Council reminds us that the mission of ordained clergy, while unique, is interrelated to the mission of the lay faithful, as follows:
Though they differ from one another in essence and not only in degree, the common priesthood of the faithful and the ministerial or hierarchical priesthood are nonetheless interrelated: each of them in its own special way is a participation in the one priesthood of Christ. The ministerial priest, by the sacred power he enjoys, teaches and rules the priestly people; acting in the person of Christ, he makes present the eucharistic sacrifice, and offers it to God in the name of all the people. But the faithful, in virtue of their royal priesthood, join in the offering of the Eucharist. They likewise exercise that priesthood in receiving the sacraments, in prayer and thanksgiving, in the witness of a holy life, and by self-denial and active charity. (Lumen Gentium 10)