'According to the Flesh' in the Bible

In forming this purpose, did I, therefore, behave with levity? or do I purpose what I purpose, according to the flesh, that there may be with me, yes yes, and no, no?

So, then, we henceforth know no man according to the flesh; if, indeed, we have known Christ according to the flesh, yet now we no longer thus know him.

I, indeed, beseech you, that I may not, when present, be bold with that confidence with which I think I shall be bold against some, who think of us as if we walked according to the flesh.

For though we walk in the flesh, we do not war according to the flesh,

Since many boast according to the flesh, I also will boast.