What does the “Lamb” symbolize?

Reading Comprehension: Read the quoted parts carefully and answer the questions in English．Write your answers in the corresponding space．“When the stars threw down their spears,
And water’d heaven with their tears,
Did he smile his work to see?
Did he who made the Lamb make thee?”
What does the “Lamb” symbolize?
【正确答案】：

IT SYMBOLIZES PEACE AND PURITY.

【题目解析】：引文中的“Lamb”象征的是和平和纯洁。