"Upon my honor and before God, you may be sure of it."

Just what I was about to add, upon my honour!

"Then upon my honor, I would owe you a debt of service."

So you'd play upon my honor now, would you?

Upon your honor, Lady, do you know such a man?

Upon my honor, I will instantly return it to you.

Such is really the case, I assure you, upon my honor!

Upon my honor, this man fancies the world belongs to him.

Their contempt is a stain upon my honor, and I cannot live with it.

Upon his honor, he intended to be completely faithful to Sabrina in future.