In this life, we experience many things. We experience happiness, sadness, difficulty, times of peace, times of turmoil, love, hate, anger, excitement, times of wonder, times of hope, etc . . .
However, the one thing that we experience on a regular basis and without fail is the experience of sinning. We find ourselves giving in to the temptation of getting our way; or doing what we want though we know it is wrong; or lashing out in selfish anger; or lying or gossiping, slander others, deceive, are boastful, are envious; or indulging with possessions, money, food, working too much, laziness, etc.
As a Christian, I get frustrated, angry with myself and wonder how a righteous a pure God could ever forgive me time and time again.