What should I say to someone who has lost a loved one through cancer?

Acts 9:37

Be very careful not to give the impression that God was punishing the person for his sins. Instead, speak about the fact that all around us we can see the evidence of a “fallen creation.” Explain how in the beginning there was no disease, pain, suffering, or death. But when sin entered the world, it brought suffering with it. Then gently turn the conversation away from the person who died to the person who is still living. Ask if he has been thinking about God, and if he has kept the Ten Commandments. Then take the opportunity to go through the spiritual nature of God’s Law. Someone who has lost a loved one often begins to ask soul-searching questions about God, death, and eternity. Many people are so hardhearted that it takes a tragedy to make them receptive to God.

~ This excerpt was taken from The Evidence Bible.