'Speak' in the Bible

Verily, verily, I say unto thee, We speak that which we know, and we bear witness of that which we have seen, and ye receive not our witness.

Jesus says to her, I who speak to thee am he.

If any one desire to practise his will, he shall know concerning the doctrine, whether it is of God, or that I speak from myself.

Jesus therefore said to them, When ye shall have lifted up the Son of man, then ye shall know that I am he, and that I do nothing of myself, but as the Father has taught me I speak these things.

I speak what I have seen with my Father, and ye then do what ye have seen with your father.

and because I speak the truth, ye do not believe me.

Which of you convinces me of sin? If I speak truth, why do ye not believe me?

but how he now sees we do not know, or who has opened his eyes we do not know. He is of age: ask him; he will speak concerning himself.

For I have not spoken from myself, but the Father who sent me has himself given me commandment what I should say and what I should speak;

and I know that his commandment is life eternal. What therefore I speak, as the Father has said to me, so I speak.

I speak not of you all. I know those whom I have chosen; but that the scripture might be fulfilled, He that eats bread with me has lifted up his heel against me.

Believest thou not that I am in the Father, and that the Father is in me? The words which I speak to you I do not speak from myself; but the Father who abides in me, he does the works.

I will no longer speak much with you, for the ruler of the world comes, and in me he has nothing;

But when he is come, the Spirit of truth, he shall guide you into all the truth: for he shall not speak from himself; but whatsoever he shall hear he shall speak; and he will announce to you what is coming.

These things I have spoken to you in allegories; the hour is coming that I will no longer speak to you in allegories, but will declare to you openly concerning the Father.

And now I come to thee. And these things I speak in the world, that they may have my joy fulfilled in them.