Does God Truly Deliver Us From Evil?

Does God truly deliver us from evil? We pray this petition regularly whenever we pray the Lord’s Prayer. That being the case, what are we to make of those times when we do experience harm? How should we consider hearing the news from the doctor that we have cancer? What does this mean when the horror of war breaks out as it has now in eastern Europe? Has God not heard out prayer? Has God failed to deliver us from evil?