'Baptized' in the Bible

Is Christ divided? was Paul crucified for you? or were ye baptized in the name of Paul?

I thank God that I baptized none of you, but Crispus and Gaius;

Lest any should say that I had baptized in mine own name.

And I baptized also the household of Stephanas: besides, I know not whether I baptized any other.

And were all baptized unto Moses in the cloud and in the sea;

For by one Spirit are we all baptized into one body, whether we be Jews or Gentiles, whether we be bond or free; and have been all made to drink into one Spirit.

Else what shall they do which are baptized for the dead, if the dead rise not at all? why are they then baptized for the dead?