There are many ways to cover up our sin. We may justify or minimize it by blaming circumstances and others people. However, real repentance first admits sin as sin and takes full responsibility. True confession and repentance begins when blame shifting ends...Just as real repentance begins only where blame shifting ends, so it also begins where self-pity ends, and we start to turn from our sin out of love for God rather than mere self-interest.
Timothy Keller