1 Peter 3:18-20 (KJV)
18 For Christ also hath once suffered for sins, the just for the unjust, that he might bring us to God, being put to death in the flesh, but quickened by the Spirit: [that is Born Again, the Baptism that SAVES]
19 By which also he went and preached unto the spirits in prison;
20 Which sometime were disobedient, when once the longsuffering of God waited in the days of Noah, while the ark was a preparing, wherein few, that is, eight souls were saved by water.
1 Corinthians 12:13 (HCSB)
13 For we were all baptized by one Spirit into one body—whether Jews or Greeks, whether slaves or free—and we were all made to drink of one Spirit.
Christian Water Baptism is only a Picture and Public Identification, of what the Holy Spirit did by IMMERSING you into the Spiritual Body of Christ, TRUE SALVATION.