With the new year upon us, maybe there will be someone new looking in who knows of examples as requested in the OP and clarified in further posts. And again, remember that the purpose of this topic is not to discuss how long the Messiah was in the heart of the earth. As stated, there are other topics that do that. However, there are those who say that Matthew 12:40 is using common Jewish idiomatic language such as the Messiah saying that He would be in the heart of the earth for 3 nights when He knew that it would only be for 2 nights. But in order to say that it was common, one would have to know of other instances where the same pattern had to have been used. I am simply looking for some of those instances, scriptural or otherwise. So far no one has come forth with any.