'First' in the Bible

But know this first of all, that no prophecy of Scripture is a matter of one’s own interpretation,

For if, after they have escaped the defilements of the world by the knowledge of the Lord and Savior Jesus Christ, they are again entangled in them and are overcome, the last state has become worse for them than the first.

Know this first of all, that in the last days mockers will come with their mocking, following after their own lusts,