Many religions profess that God will forgive you for your sins if you admit to them. But in the Osashizu, it is stated that words or intention have less influence than action. It is the actual behavior when confronted with the same temptations, or crisis that God accepts as our apology. For example, there are many alcoholics, gamblers, or sex addicts that apologize to God for the past improprieties; but when confronted with the same temptations, they succumb to their weakness. It is only when they resist their temptations that God actually forgives them.
Whether these sufferings or temptation originate from God, or is a result of our own actions (causality), it does not matter. They appear to purify our hearts. For many, including myself, we may need many inconveniences to purify our hearts. For example, I have resolved not get angry with others, but today when confronted with an inconvenient situation, I became angry with another person. In my case, I have not yet purified my heart.
If you believe in causality, I have created more suffering for myself in the future by my actions of today. I will have to prove my resolve again. If you believe in God testing my resolve, he will have to continue to test me with these inconveniences until I purify my heart.
In summary, words are less effective then action. God accepts our apology and resolve only by our actions when confronted with suffering or temptation. For many of us purification of the heart is a difficult task. Suffering, temptations and inconveniences provide opportunities where we can ask forgiveness from God. Sweep evil from your hearts when confronted with suffering.