To acknowledge oneself as a sinner is a fundamental religious attitude. In the Old Testament, the worship of God and praise for His blessings were inseparable from the confession of sins. As for Christ, He was the one who would come and call sinners to penitence.
Matt. 9:13; 1Tim1:95
I say to you, that even so there shall be joy in heaven upon one sinner that does penance, than upon ninety-nine just who need not penance.
Luke 15:7
I Believe in the Forgiveness of Sins www.vatican.va/archive/catechism/p123a10.htm#I
The Sarcrament of Penance and Reconciliation
www.vatican.va/archive/catechism/p2s2c2a4.htm
www.cin.org/users/james/ebooks/master/baltimore/bsacr-p.htm
www.newadvent.org/cathen/11618c.htm
Confession: Is it Biblical? http://matt1618.freeyellow.com/confess.html
Confession of Sins: A Divine Institution www.therealpresence.org/archives/Sin/Sin_008.htm
Reconciliation (Biblical References) www.scripturecatholic.com/confession.html
www.catholicapologetics.org/ap060300.htm
http://matt1618.freeyellow.com/fathersconfess.html
Sacrament of Penance in the Early Church www.catholic.com/library/Confession.asp
www.ewtn.com/library/DOCTRINE/PENANC.TXT
Sacrament of Penance (Fathers of the Church) www.cin.org/users/jgallegos/confess.htm
God continually calls man to repentance www.catholiclinks.org/sacramentodelperdenl090600.htm
Confession and Salvation www.catholicdoors.com/faq/qu51.htm
Forgiveness of Sins www.therealpresence.org/archives/Sin/Sin_003.htm
Sin and the Sacrament of Penance http://matt1618.freeyellow.com/chapter12.html
Reconciliation: An Experience of Forgiveness
www.americancatholic.org/Newsletters/YU/ay0199.asp
The Sacrament of Reconciliation:Celebrating God's Forgiveness
www.americancatholic.org/Newsletters/CU/ac0386.asp
Reconciliation - a Sacrament of Healing www.miraclerosarymission.org/wag4.htm
Penance, The Sacrament of Forgiveness and Peace www.therealpresence.org/chapel/penance.htm
The Soul Restored to the Friendship of God www.catholicdoors.com/teaching/book2/2-7.htm
Ten Commandments for the Scrupulous http://mission.liguori.org/newsletters/scrupulosity.htm
Why do we have to go to confession to receive God's forgiveness?
http://catholiceducation.org/articles/apologetics/ap0150.html
The Forgiveness of Sins www.catholic.com/library/Forgiveness_of_Sins.asp
Confession www.cin.org/users/james/ebooks/master/baltimore/bsacr-p.htm#Lesson19
www.cin.org/users/jgallegos/confess.htm
Prayers for the Sacrament of Reconciliation www.catholic-forum.com/saints/index017.htm
Brushing Up On Confession http://catholiceducation.org/articles/religion/re0267.html
Choosing a Good Confessor www.therealpresence.org/archives/Sin/Sin_007.htm
Confessional Privacy www.catholicdoors.com/faq/qu74.htm
The Law of the Seal of Confession www.newadvent.org/cathen/13649b.htm
How to Go to Confession http://frpat.com/reconciliation.htm
www.cin.org/users/james/questions/q128.htm
Examination of Conscience www.newadvent.org/cathen/05675a.htm
www.therealpresence.org/archives/Sacraments/Sacraments_005.htm
http://landru.i-link-2.net/shnyves/examination_of_conscience.htm
Kinds of Sin www.cin.org/kc49-3.html
Our Sense of Sin www.cin.org/kc49-1.html
Overcoming Sin www.cin.org/kc49-5.html
The Bible And Sin www.cin.org/kc49-2.html
Bring to Light What was Hidden www.miraclerosarymission.org/wag2.htm
The Sin of Abortion and the Sacrament of Confession www.catholicdoors.com/faq/qu70.htm
Confession Must Be Humble, Complete and Accompanied by a
Firm Purpose of Amendment www.ewtn.com/library/PAPALDOC/JP960322.htm
Repentance - The Conversion of the Heart to God
www.catholicdoors.com/teaching/book1/1-17.htm
Contrition www.cin.org/users/james/ebooks/master/baltimore/bsacr-p.htm#Lesson18
www.newadvent.org/cathen/04337a.htm
Imperfect Contrition (Attrition) www.newadvent.org/cathen/02065a.htm
The Sacrament of Confession and General Absolution www.catholicdoors.com/faq/qu27.htm
On General Absolution Paul VI http://www.papalencyclicals.net/Paul06/p6pastor.htm
Reconciliation and Penance www.ewtn.com/library/PAPALDOC/JP2RECON.htm
Doing Penance www.cin.org/users/james/files/penance.htm
On the Need for Penance www.ewtn.com/library/PAPALDOC/P6PAEN.htm
Assigned Penance in the Sacrament of Confession
www.therealpresence.org/archives/Sacraments/Sacraments_004.htm
Rediscovering Frequent Confession http://legion-of-mary-ny.home.att.net/frequent_confession.htm
The Spiritual and Psychological Value of Frequent Confession
www.therealpresence.org/archives/Sin/Sin_010.htm
Annual Reconciliation for "Serious Sin" www.cin.org/precept7.html
Confession Before Communion www.rpinet.com/ml/2402bi1.html
First Confession: An Historical and Theological Analysis
www.therealpresence.org/archives/Sin/Sin_001.htm
The Problem of First Confession www.therealpresence.org/archives/Sin/Sin_009.htm
ON-LINE STUDY COURSE:
The Sacrament of Confession www.catholicdoors.com/courses/confess.htm