Infant baptism is a sign of God's multi-generational faithfulness. God's covenants always include the next generation. We Presbyterians call this "covenant succession." The promise God makes to believing parents is, "I will be your God and the God of your children." The hope, based on this promise, is that the faith will be passed on from one generation to the next in an unbroken chain.
M is another link in that chain, a chain that has been going on for generations.
There is no greater task, no more rewarding work than raising children in the nurture and admonition of the Lord. The Bible describes covenant children as gifts, as a heritage from the Lord, as weapons in our Spiritual warfare, as a legacy, as a blessing. God is building a kingdom, a civilization, and any kingdom takes generations to build. God intends to use our families to build his kingdom. R and H want to be a part of that, and they want M to be a part of that glorious multi-generational kingdom project. For M, his part in that kingdom project begins here today in the waters of baptism. Today M becomes another link in the chain.