In Jewish tradition, full-body immersion cleansing in a Mikveh can happen many times a year after events that cause uncleanliness under Mosaic Law. This is the origin of Christian baptism.
Some Christians believe that one baptism is all that is needed because Christ only needs to clean us once and for all. However, notwithstanding the purification power of Christ, the reason for a believer to receive baptism may vary, and in practice there may be several different kinds of baptisms.
Baptism by water, for a new believer to first dedicate themselves to walking with Christ and obedience in Christ, for the removal of earthly distractions, and for the protection from evil spirits. This is akin to John’s baptism of repentance in Matthew 3 for the purpose “to fulfill all righteousness.”
Baptism by water, when a believer fully understands their sins and wishes to remove their body of flesh under the circumcision of Christ and resurrect in the love of Christ (Colossians 2:11-14).
Baptism by the Holy Spirit. This is akin to the Pentecost in Acts 2 where the Holy Spirit descends as tongues of fire to rest inside the disciples. This cannot be performed by a person, but may happen anecdotally during an outreach effort, e.g. the family of Cornelius was baptized by the Holy Spirit even before Peter baptized them with water in Acts 10.
However, the remembrance and renewal of covenant with Christ should be done through the Eucharist (Lord’s Supper) instead.