'Myself' in the Bible

And even if I am offered like a drink offering, giving myself for the cause and work of your faith, I am glad and have joy with you all:

But I have faith in the Lord that I myself will come before long.

Even though I myself might have faith in the flesh: if any other man has reason to have faith in the flesh, I have more:

But I will not say anything about my needs, for I am able, wherever I am, to be dependent on myself.