in Matthew 14:26, John 6:19 and Mark 6:49 Jesus is said to be walking upon the water of a lake. However, the Greek word "epi", translated as "upon" in these passages could just as well mean "in", or "beside".
Also, if Jesus' life is to be taken allegorically anyway, then it is irrelevant whether he walked on or in the water anyway. This tune is named for the spiritual Jesus, walking through the water, after passing his disciples by (as mentioned here: jdstone.org/cr/files/jesuswalkedonwater.html )