There are few things more Promethean than...
Presuming to receive Holy Communion in the hand, aka, 'God-grabbing'.
Presuming to receive Holy Communion not in a State of Grace, thereby committing sacrilege.
Presuming that a Communion plate is no longer needed when distributing Holy Communion to safeguard the Eucharist and any precious fragments, each one of which is the Lord God.
The unordained presuming to touch the Sacred, Most Most Holy Sacrament of the Altar.
Presuming that Baptism, reception of Holy Communion and membership of the One True Church are no longer necessary for Salvation.
Presuming or imagining that by the whim of man's desire, the truth expressed by the Magisterium can 'change' to the degree that morality and belief no longer mean the same thing as they did for everyone else in Church history.
Presuming that Almighty God has sanctioned a revolutionary understanding in the sacred liturgy by reference to a vague 'spirit', like that of Vatican II.
Presuming to spread new interpretations of the Church's teachings that have no basis whatsoever in the writings of the Saints, Doctors of the Church, Church Fathers of the words of Our Lord Jesus Christ.
Presuming that the words of Our Lord on various matters concerning morality and belief 'should not be taken literally'.
Presuming that by virtue of the high Office which you occupy in the Church established by Our Lord, that this gives you liberty to alter on a personal whim those customs, rules and norms followed by your predecessors because you have been handed 'absolute power' and the Office that you fill is now your 'possession', as well as the Church handed into your care.
Presuming that the Church's ancient use of Gregorian Chant is no longer suitable music to be sung in the liturgy.
Presuming to use white vestments or a white Altar frontal at a funeral, without the solemnity such an event demands, with a sense that we should pray for the dead, because 'everyone goes to Heaven'.
Presuming that everybody shall be saved, including those of other religions not attached to the True Vine or that Hell is empty.
Presuming that God will give you a favourable judgment upon Death.
Can anyone else think of various activities and trends taking place within the 21st century Catholic Church which are distinctly 'Promethean'?
Prometheanism is really about unholy presumption - presuming that that which is sacred and holy ,which is not yours, is, or can be, or will be, solely by virtue of your own will, without any reference to the Divine will made known in His Holy Church, guided by the Holy Spirit.