Don't let "the reward of physical dipping" be mistaken for "the reward for faithful submission" (to obtain the promised result).
"Are not Abana and Pharpar, rivers of Damascus, better than all the waters of Israel? may I not wash in them, and be clean? So he turned and went away in a rage. [13] And his servants came near, and spake unto him, and said, My father, if the prophet had bid thee do some great thing, wouldest thou not have done it? how much rather then, when he saith to thee, Wash, and be clean? [14] Then went he down, and dipped himself seven times in Jordan, according to the saying of the man of God: and his flesh came again like unto the flesh of a little child, and he was clean." - 2 Kings 5:12-14 KJV
--And--
"The like figure whereunto even baptism doth also now save us (not the putting away of the filth of the flesh, but the answer of a good conscience toward God,) by the resurrection of Jesus Christ:" - 1 Peter 3:21 KJV
--And--
"And now why tarriest thou? arise, and be baptized, and wash away thy sins, calling on the name of the Lord." - Acts 22:16 KJV
It doesn't have to make sense to us, but it produces the promised result...if, and only if, it is submitted to.
Love in Jesus,
Kelby