Always Look Forward

"We may be contaminated by dwelling upon evil deeds that we ourselves have committed, just as surely as by reading or listening to

tales of bloody deeds. 

I suppose that what you specially refer to is the sins that have been committed in former days. Now the Bible does not tell us to look backward, but always forward. Hebrews 12:1,2: Let us lay aside every weight, and the sin which does so easily beset us, and let us run with patience the race that is set before us, Looking unto Jesus the Author and Finisher of our faith." 

E.J. Waggoner