God is good is not conditional statement, it is more than a slogan we recite. God is good and good is God. What we call good is not good, and it changes and is not established and final. Our testimony to the world as believes is that the goodness of God is not dependent upon what happens to us daily, it does not change when things are not going well. God is always good, and it matters that we know this, believe this and speak of God's goodness to push back against the devil. Especially when things are not going well for us.