Circumstances for rebaptism

There are two potential circumstances where one might consider rebaptism is in order. The first is when you break your baptismal covenant to always live as Jesus would in your place. The second is when something causes a disconnection between you and the priest who baptizes you. Neither of these are valid reasons to be rebaptized.

In baptism, you promise to God to keep all of his commandments, even unto death.⁸²⁴ If you knowingly break a commandment, you have broken the covenant of baptism through willful rebellion against God. You repent and renew your commitment to God through forsaking the sins of which you are aware and rededicating yourself to greater fidelity to God than you had before. Since this commitment is independent of baptism, there is no reason to get rebaptized in order to renew it. In other words, while there is such a thing as baptism for repentance, there is no such thing as rebaptism for repentance, as the only people that would need to be baptized in order to repent of their sins are those who have not yet been validly baptized.

The commandment of baptism is to receive it once. There is no commandment to maintain a valid baptismal connection to a worthy priest. For example, while Jesus went to lengths to receive baptism from John the Baptist, he had no continuing connection to John after his baptism. One of the blessings of baptism is the additional information about God or application of that information to your life that could come from a continued relationship with the man who baptizes you. However, such relationships are available outside of the context of baptism. Whether you have an ongoing relationship with the priest who baptized you or not, the blessings available from those who know God better than you are always available.