I know that it IS a sin to deny the rite of infant baptism to our children, because it is the only salvific grace that is available to infants; and the council of Trent makes that very clear. That’s why I took my daughter to a priest to be infant baptized 16 years ago. This summer, she wants to receive the rite of adult baptism administered by me. I know that it IS a sin to re-baptize a person, but I believe it is NOT a sin for me to administer the rite of adult baptism on her as long as there are two differences: 1. I use a different mode (ie. I immerse her in water instead of pouring water on her as the priest did), and 2. I use a different verb in the formula (ie. I say “bury” instead of “baptize”). This ensures that a different thing is done and a different verb is spoken. I know that it is NOT the sin of re-baptizing, because it is not possible to redo something that has not been done before. Nor is it a sin according to anything I could find that was written by the apostles or their rightfully ordained successors.
So, I find no evil in receiving both rites of baptism like that and I just happen to have found some good in receiving both rites of baptism. The following statistics prove that the adult baptized receive some sort of baptismal grace that the infant baptized do not receive (ratios are from beliefnet.com). In the 2012 presidential election, there was a pro life ticket and a pro choice ticket. 0% of the eight states with the highest catholic-to-evangelical ratio (above 2) elected the pro life ticket, 30% of the twenty states with the second highest catholic-to-evangelical ratio (3/4 - 2) elected the pro life ticket, 73% of the eleven states with the second lowest catholic-to-evangelical ratio (1/3 to 3/4) elected the pro life ticket, and 100% of the nine states with the lowest catholic-to-evangelical ratio (below 1/3) elected the pro life ticket. This makes it a statistical fact that the adult baptized are more pro life than the infant baptized. Numbers don’t lie. I do not doubt that receiving only one of the two rites of baptism is good enough for salvation, but the evidence suggests that it is better to receive both rites of baptism and this is why I do not want to deny the second rite to my daughter.
If anybody knows any reason why it would be a sin to receive both rites of baptism like that, then please let me know. I’ve spent a great deal of time praying about it and studying every teaching I could find about it, and I’ve not found any hint that it would be a sin. Again, I know that being re-baptized is a sin and Jimmy Akin wrote an excellent article about that sin. But what I have explained is not re-baptizing, because it is not possible to redo something that has not been done before. What I have explained is more like a memorial of her infant baptism, only that she is not the one remembering it. We do a memorial of our baptism thousands of times in our life by dipping our hand in the water at mass, but this does not mean we are being re-baptized thousands of times. So, I’m growing increasingly sure that it will be good for my daughter to receive the adult rite of baptism this summer as long as I use the appropriate mode and formula. By the way, she is not confirmed and she will not be confirmed until at least 2017.