It can’t be pointed out too frequently that God gave us baptism as a visible & earthbound sign. The reason for this, in part, is that it shows us that God loves creation. His creation is good. Water is good. Mankind made in His image is good. He gives us this visible sign of His Covenant grace, and in so doing signals to us that Heaven is coming to Earth. This earthly sign unveils heavenly glories.
In your baptism, Christ’s rule over His creation is asserted. God visibly covenants with you through baptism. This water upon this brow declares, “His Kingdom come.” Covenant blessings are extended to this son, and as he’s raised to walk in those blessings by faith, God works in this means of grace to advance His Kingdom here on earth. This isn’t a ritual for disembodied spirits. It’s a sign that God’s Kingdom, Power, and Glory has now come.
So welcome our brother to Jesus Christ…