わたしが地上のことを語っているのに、あなたがたが信じないならば、天上のことを語った場合、どうしてそれを信じるだろうかの英語

If I have told you earthly things, and ye believe not, how shall ye believe, if I tell you of heavenly things?

Whatever you may say, I don't believe you.

Whatever you may say, I don't believe you.

I don't believe you. You're always telling lies.

I can't imagine how you dare (to) tell me such things.

I must verify your statement.

Granting your statement to be true, it does not answer my argument.

Whatever you may say, you won't be believed.

We speak that we do know, and testify that we have seen; and ye receive not our witness.

I don't understand what you are trying to say.

I don't understand what you're trying to say.

I can't see what you mean.

What is that to you?

Granted [Granting] that what you say is true, it's no excuse.

“I can't believe your story."“I understand, but it's true."

I'd like to believe that what you are saying is what you truly feel.

Assuming your story is true, what should I do?

Assuming what you say is true, what should I do?

I haven't the faintest idea what you mean.

Granting what you say to be true, it does not answer my argument.

If I were to tell you the truth, you would be surprised.

No matter what you say, they'll never believe you.

You think I don't know what's going on?

Do you think I don't know what's going on?

Do you think I don't know what's happening?

Do you think that I don't know what's happening?

Are you suggesting that I am not telling the truth?

a formal series of statements showing that if one thing is true something else necessarily follows from it

It makes little difference to me whether you believe it or not.

Are you suggesting that I am not telling the truth?