As always, we must ask WWLS?
Who, then, would despise the fact that God the Father, Son, and Holy Spirit are present? Who would call such water simple water only? Do we not see what sort of spice God casts into this water? If you cast sugar into water, it is no longer water but delicious claret or something else. Why, then, do we want to seperate the Word from the water so entirely in this case and say that the water is simple water only, just as if God's Word, nay, God Himself, were not present with and in this water? Not so; for God the Father, Son, and Holy Spirit are indeed in and with this water, as they were there on the banks of the Jordan when Christ stood in the water, the Holy Spirit hovered over it, and God the Father spoke. This is why Baptism is a water that takes away sin, death, and every evil and helps us to enter heaven and eternal life. Such a delicious sugar water, aromatic, and specific it has become because God Himself has entered it. But God is a God of Life. Since, then, He is in this water, this must be the real aqua vitae, "water of life," which drives away death and hell and makes one eternally alive.
-Martin Luther, in a sermon on Jesus' baptism