To follow Jesus is all about repentance and obedience. An infant can not do that.

One of the biggest arguments within Christianity is linked to baptism. I know that my Catholic friends will reject todays messages, and my Lutheran family will be offended. But I have to tell the truth, and will say as Paul:
2 Corinthians 7:8
«Even if I caused you sorrow by my letter, I do not regret it. Though I did regret it. I see that my letter hurt you, but only for a little while»
The issue of baptism is expressed many places in the New Testament. Like in this message from Peter:
Acts 2:38
«Peter replied, “Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins. And you will receive the gift of the Holy Spirit».
Now, an infant could not have received this message. But still many Christians wants to believe than an infant can be saved by a religious ritual, and be added to the true Church.
If the infant ends up like the devil of the town later in life, neither will his parents nor the Church be willing to take the blame for their faulty teaching.
How could this Child of God, who excepted Christ as an infant, walk away from such a wonderful and obvious message of salvation?
Jesus challenged the teachers of the laws of his day, and I will do the same:
Matthew 21:25
«John’s baptism, where did it come from? Was it from heaven, or from men?»
Now, a Catholic and a religious Lutheran will answer that it was from God, but God changed his mind. Because unlike John, who demanded fruit of repentance before he baptized people, and that obviously pleased God, the Catholics and religious Lutherans do not demand such fruits.
Jesus first refused to answer the teacher of the law, and let the truth pending for some time. But in the Gospel according to Luke, we get the message straight:
Luke 7:30
«But the Pharisees and experts in the law rejected God’s purpose for themselves, because they had not been baptized by John».
The life of Jesus him self testify against baptism of infants. Simply because God never told his Jewish mother to baptize her firstborn. God would have done this, if He wanted to give an indisputable acknowledgment of baptism of infants, and instructed parents to do so forever after.
Finally, comes the instruction from Jesus Him self:
Mark 10:39
«We can,” they answered. Jesus said to them, “You will drink the cup I drink and be baptized with the baptism I am baptized with».
There was no time for the repenting thief on the cross to get baptized. But there is time for you.
It is not my job to tell you what kind of consequences you will face, if you disobey your master in Baptism. Because I am not sure. But if you want to be sure that you have copied Him also in your baptism, go to the river today and do it.