The author of Hebrews exhorted his fellow disciples as follows:
'With so many witnesses in a great cloud on every side of us, we too, then, should throw off everything that hinders us, especially the sin that clings so easily, and keep running steadily in the race we have started.' Hebrews 12:1-4
Today's Scripture readings from the Sacred Liturgy: http://www.usccb.org/bible/readings/020513.cfm
The question we must ask ourselves is, 'what sin hinders us from running steadily in the race? For the answer is 'legion' in a society which has lost hold of its Judaeo-Christian faith.
For in today's gospel (Mark 5:21-43), Jesus, after having just healed the Gerasene demoniac of a 'legion' of demons, and being unceremoniously kicked out of their town, is barraged by a large and unruly crowd with various demands. Yet, instead of giving the normal human response of tit-for-tat in response to his previous rejection, Jesus sees past the unruliness of the crowd to see the desperate human need of Jairus, the father of a dying 12 year old, and the sad situation of the woman with the 12 year hemorrhage.
If Jesus can see past our unruliness, and past our rejections of Him, why can't we repent of the worst of our sins, and move forward in Him?
The Sacrament of our life returned! http://www.beginningcatholic.com/sacrament-of-reconciliation.html
Now to my original question, 'what sin is so great that it overshadows the Light of God's Divine Mercy in our Life?' Reality, opposing the lie of both the devil and the world, is that there is no such sin; the reality is also that each and every one of us harbors a definite weakness within us, whether we act on it regularly or not, which hinders us running the race of faithful discipleship in the Holy Spirit.
The Divine Mercy message: http://thedivinemercy.org
But truth be told, whether it be past adultery, a past abortion, a past cursed with pornography, with drug addiction, or with whatever scourge had entered our life, only faith will make us rest assured that God will forgive, in the Blood of His Son, in the Spirit of His Mercy, through the Sacrament of His Church.
All we have to do is want forgiveness, and then, just show up!