Do not come to prayer with a guilty conscience." Epistle of Barnabas, 19:12 (A.D. 74).
“In church confess your sins, and do not come to your prayer with a guilt conscience. Such is the Way of Life…On the Lord’s own day, assemble in common to break bread and offer thanks; but first confess your sins, so that your sacrifice may be pure." Didache, 4:14,14:1 (c. A.D. 90).
“Such are the words and deeds by which, in our own district of the Rhone, they have deluded many women, who have their consciences seared as with a hot iron. Some of them, indeed, make a public confession of their sins; but others of them are ashamed to do this, and in a tacit kind of way, despairing of [attaining to] the life of God, have, some of them, apostatized altogether; while others hesitate between the two courses, and incur that which is implied in the proverb, ‘neither without nor within;’ possessing this as the fruit from the seed of the children of knowledge.” Irenaeus, Against Heresies, 1:13 (A.D. 180).
“Father who knowest the hearts of all grant upon this Thy servant whom Thou hast chosen for the episcopate to feed Thy holy flock and serve as Thine high priest, that he may minister blamelessly by night and day, that he may unceasingly behold and appropriate Thy countenance and offer to Thee the gifts of Thy holy Church. And that by the high priestly Spirit he may have authority to forgive sins…” Hippolytus, Apostolic Tradition, 3 (A.D. 215).
“For although in smaller sins sinners may do penance for a set time, and according to the rules of discipline come to public confession, and by imposition of the hand of the bishop and clergy receive the right of communion: now with their time still unfulfilled, while persecution is still raging, while the peace of the Church itself is not vet restored, they are admitted to communion, and their name is presented; and while the penitence is not yet performed, confession is not yet made, the hands Of the bishop and clergy are not yet laid upon them, the eucharist is given to them; although it is written, ‘Whosoever shall eat the bread and drink the cup of the Lord unworthily, shall be guilty of the body and blood of the Lord.’” Cyprian, To the Clergy, 9 (16):2 (A.D. 250).
“Moreover, how much are they both greater in faith and better in their fear, who, although bound by no crime of sacrifice to idols or of certificate, yet, since they have even thought of such things, with grief and simplicity confess this very thing to God’s priests, and make the conscientious avowal, put off from them the load of their minds, and seek out the salutary medicine even for slight and moderate wounds, knowing that it is written, ‘God is not mocked.’ God cannot be mocked, nor deceived, nor deluded by any deceptive cunning. Yea, he sins the more, who, thinking that God is like man, believes that he evades the penalty of his crime if he has not openly admitted his crime…I entreat you, beloved brethren, that each one should confess his own sin, while he who has sinned is still in this world, while his confession may be received, while the satisfaction and remission made by the priests are pleasing to the Lord?” Cyprian, To the Lapsed, 28-29 (A.D. 251).
“It is necessary to confess our sins to those whom the dispensation of God’s mysteries is entrusted.” Basil, Rule Briefly Treated, 288 (A.D. 374).
“For if any one will consider how great a thing it is for one, being a man, and compassed with flesh and blood, to be enabled to draw nigh to that blessed and pure nature, he will then clearly see what great honor the grace of the Spirit has vouchsafed to priests; since by their agency these rites are celebrated, and others nowise inferior to these both in respect of our dignity and our salvation. For they who inhabit the earth and make their abode there are entrusted with the administration of things which are in Heaven, and have received an authority which God has not given to angels or archangels. For it has not been said to them, ‘Whatsoever ye shall bind on earth shall be bound in Heaven, and whatsoever ye shall loose on earth shall be loosed in Heaven.’ They who rule on earth have indeed authority to bind, but only the body: whereas this binding lays hold of the soul and penetrates the heavens; and what priests do here below God ratifies above, and the Master confirms the sentence of his servants. For indeed what is it but all manner of heavenly authority which He has given them when He says, ‘Whose sins ye remit they are remitted, and whose sins ye retain they are retained?’ What authority could be greater than this? ‘The Father hath committed all judgment to the Son?’ But I see it all put into the hands of these men by the Son.” John Chrysostom, The Priesthood, 3:5 (A.D. 387).
“All mortal sins are to be submitted to the keys of the Church and all can be forgiven; but recourse to these keys is the only, the necessary, and the certain way to forgiveness. Unless those who are guilty of grievous sin have recourse to the power of the keys, they cannot hope for eternal salvation. Open your lips, them, and confess your sins to the priest. Confession alone is the true gate to Heaven.” Augustine, Christian Combat (A.D. 397).
From:
scripturecatholic.com/confession.html
Are you more wise than the Fathers of the Church? Who has given you the authority to speak against the Church?