God is the one in charge. We have no jurisdiction in the area of life or death and we have no mandate to end lives. A Endure hardship as discipline. Suffering is good whether we think so or not. For the Christian, it produces righteousness and peace.
Death is part of life.
We have seen in societies throughout history that there is an important significance attached to dying and death. Death is in the nature of things and is accepted. Our current society, unfortunately, does not view death in this way, but we need to view it as we have in the past. As we saw with Jesus Christ, to die is to gain. As far as suffering is concerned, Christians should see that God has a purpose.