The blame game started with the fall of man

There is an old story which tells of an Italian duke who went on board a galley ship. As he passed the crew of slaves he asked several of them what their offences were. Every one laid the blame to someone else, saying his brother was to blame or the judge was bribed. One sturdy young fellow said: “My lord, I am justly in here. I wanted money and I stole it. No one is to blame but myself.” The duke on hearing this seized him by the shoulder, saying, “You rogue! What are you doing here among so many honest men? Get you out of their company!” The young fellow was then set at liberty, while the rest were left to tug at the oars.

– Charles Spurgeon

If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness. If we say that we have not sinned, we make him a liar, and his word is not in us. (1Jo 1:9-10)