"Lord, grant also to us such fellow workers, for we are weak and our need is greater."
The supreme task which Christ had to fulfill was his priestly work of atonement which he completed as mediator between God and man. By the union in himself of humanity and divinity Christ is by nature the mediator. As a man from among men, Christ is our mediator with the Father; yet he is also capable of offering a worthy sacrifice to God because, by virtue of the union of his human nature with the Second Person of the Godhead, his human actions have in infinite value. In this fullest sense, the priesthood belongs to Christ alone.
But if Christ wished to live on and continue his work in the Church, the first thing he had to do was to provide for the continuance of his sacerdotal and mediatory function. Above all, if Christ wished to renew the sacrifice of the Cross throughout the ages and all over the world as the sacrifice of the New Law in the Holy Mass, he had to allow other men to share in his priesthood. For if there is to be a true sacrifice, there must be a priesthood ordained and authorized by God from whose hands God will accept the sacrifice.
Men interesting in discerning becoming deacons or priests should contact our parish priests of the diocese vocations office. vocationsboston.org