The quote in English:
WT December 1, 2005, Armageddon - A Happy Beginning, Page 6, pp 5.
Many wonder, however, why a God who is the very embodiment of love would inflict death and destruction on much of humankind. The situation might be compared to that of a pest-infested house. Would you not agree that a conscientious homeowner should safeguard the health and well-being of his family by exterminating the pests?