'Speak' in the Bible

But if our unrighteousness commend the righteousness of God, what shall we say? Is God unrighteous who taketh vengeance? (I speak as a man)

I speak after the manner of men because of the infirmity of your flesh: for as ye have yielded your members servants to uncleanness and to iniquity unto iniquity; even so now yield your members servants to righteousness unto holiness.

Know ye not, brethren, (for I speak to them that know the law,) how that the law hath dominion over a man as long as he liveth?

For I speak to you Gentiles, inasmuch as I am the apostle of the Gentiles, I magnify mine office:

For I will not dare to speak of any of those things which Christ hath not wrought by me, to make the Gentiles obedient, by word and deed,