30 How much thought, therefore, Venerable Brethren, must the Bishop seriously take with himself and in the presence of God before laying hands on young levites! "Let him never dare, either as an act of favor to anybody or in response to petitions made to him, to promote any one to sacred orders whose life and actions do not furnish a guarantee of worthiness" ( Registr . v 63 (58) ad universos episcopos per Hellad.) With what deliberation should he reflect before entrusting the work of the apostolate to newly ordained priests! If they be not duly tried under the vigilant guardianship of more prudent priests, if there be not abundant evidence of their morality, of their inclination for spiritual exercises, of their prompt obedience to all the norms of action which are suggested by ecclesiastical custom or proved by long experience, or imposed by those whom "the Holy Ghost has placed as bishops to rule the Church of God" ( Acts xx. 28), they will exercise the sacerdotal ministry not for the salvation but for the ruin of the Christian people. For they will provoke discord, and excite rebellion, more or less tacit, thus offering to the world the sad spectacle of something like division amongst us, whereas in truth these deplorable incidents are but the pride and unruliness of a few. Oh! let those who stir up discord be altogether removed from every office. Of such apostles the Church has no need; they are not apostles of Jesus Christ Crucified but of themselves.
Source: Iucunda Sane (Vatican.va)