God wants all his people to be people of metanoia, who see clearly their salvation in his son, Jesus Christ. And so, God sent John with a powerful symbol of repentance – baptism. Baptism, especially a public baptism where you are dunked in a river or a lake or a large tank – that can be somewhat embarrassing, so it is not usually done by someone just on a whim. If a person does not see a need for forgiveness from God, they will not go through with baptism. MOUNTAINS don't get baptized. And, if a person does not believe that forgiveness is possible from God, they will not go through with baptism. VALLEYS don't get baptized, either. Going through with baptism is an indication that both things necessary for repentance are present – you see the need for forgiveness, and you believe that need can be fulfilled.
And as we live the baptized life, our thinking, and our direction, continues to change under the guidance of the Holy Spirit. As our knowledge of salvation becomes clearer, we react differently to God and to the people around us. Our lives become marked with thankfulness and joy. Our relationships become centred on respect and patience. Our purpose in life moves from chasing the approval of others, to implementing what is good. And our outlook in life changes from the day-to-day, to the perspective of eternity, because we are God's forever, through our baptism in his Son Jesus Christ.
Gracious God, prepare your way in us with the clear knowledge of your salvation. Use us like you used John to prepare the hearts of the people around us for your arrival, in Jesus name, amen.