See, my servant will act wisely, he will be raised and lifted up and highly exalted. Just as there were many who were appalled at him- his appearance was so disfigured beyond that of any human being and his form marred beyond human likeness - so he will sprinkle many nations, and kings will shut their mouths because of him. For what they were not told, they will see, and what they have not heard, they will understand.Isaiah 52:13-15
The sprinkling of water on a thirsty & heat oppressed garden is something easily understood. No water, no life. So it is with Christ, without Him we are nothing. With Him is to be revived & given strength…New life, everlasting life, everlasting love.
Baptism as a symbol is similar again. The sprinkling of water demonstrates a washing away that produces a cleansing. While the shedding of blood (on the cross) has its gore, drama & brutality the outcome is a cleansing that transforms deep crimson to a white purity that is without blemish. Psalm 51:7