Without having the passage, I am not able to give you the answer. That said, I can help you process the answer. As you read the passage, underline evidence that would help you determine which image is most suggested by the language used in the text. Then read back through all the evidence you have underlined. There should be a clear answer. For example, if the passage where to say, "The Lord washed away the sins of the prophet," we would be lead to see the image of cleansing water rather than the stain of sin.
