Jesus answered, "Very truly I tell you, no one can enter the kingdom of God unless they are born of water and the Spirit."
Jesus is describing what needs to happen for us to be saved. He does not use the word baptism. Baptism is our outward and visible action, proclaiming publicly that we believe. I have read that when Jesus uses the word "water" he is refering to being born, or born again. For me, it is possible to overthink and to become too concrete here. I believe Jesus needs each one of us to have symbolically started over, to live our lives with Him.
Holy Lord, you have shown us so clearly what is the right way to you. Help me to remember my baptism, each and every day. Amen