The cross guarantees that even in your darkest moment God will never turn in disgust and walk away. There is no rebellion, no weakness, no foolishness, no evil of heart that the cross can't defeat and grace can't transform.
We must begin by admitting that people and situations do not cause us to speak as we do. Our hearts control our words. People and situations simply provide the occasion for the heart to express itself.
If you don't keep the eyes of your heart focused on the paradise that is to come, you will try to turn this poor fallen world into the paradise it will never be.
Grace will expose the deepest issues of your heart, then point you to the Cross which covers everything that's been exposed.
God is the ultimate musician. His music transforms your life. The notes of redemption rearrange your heart and restore your life. His songs of forgiveness, grace, reconciliation, truth, hope, sovereignty, and love give you back your humanity and restore your identity.
Remember, when you're sinned against its tempting to respond sinfully. Don't give in, talk to your heart and seek the grace of Jesus.
The kingdom of self tends to be more focused on what the hands can touch than what the heart should embrace.