'Whether' in the Bible

Now I did baptize also the household of Stephanas; beyond that, I do not know whether I baptized any other.

whether Paul or Apollos or Cephas or the world or life or death or things present or things to come; all things belong to you,

For how do you know, O wife, whether you will save your husband? Or how do you know, O husband, whether you will save your wife?

For even if there are so-called gods whether in heaven or on earth, as indeed there are many gods and many lords,

Whether, then, you eat or drink or whatever you do, do all to the glory of God.

For by one Spirit we were all baptized into one body, whether Jews or Greeks, whether slaves or free, and we were all made to drink of one Spirit.

Whether then it was I or they, so we preach and so you believed.