God never speaks an indecisive Word. What He utters comes to pass. What He speaks is what becomes. He doesn’t stammer. He doesn’t lie. He doesn’t cross His fingers behind His back. His Word made all things & upholds all things.
So, when He speaks in a Christian baptism, He speaks truly. This water, poured out in the Triune Name, upon this child, is a visible Word. It is God’s Word made visible. He washes away our sin, in Christ. He gives us a new heart of flesh, & removes our heart of stone, by His Spirit. He regenerates us, transferring our fatherhood from the devil unto our Heavenly Father. This is what God says here.
This all is true regardless of all we have to say about it. But we’re commanded to see & hear God’s Word to us in Baptism, and then confess & believe what He says.
So welcome our brother to Jesus Christ…