Matthew 12:40 quotes the Messiah saying that He would be in the "heart of the earth" for 3 days and 3 nights. A majority of folks believe that the crucifixion took place on the 6th day of the week, with the resurrection taking place on the 1st day of the week. This period of time, however, would only allow for 2 night times. To account for this discrepancy, it is frequently explained that the verse is using common Jewish idiomatic language of the time.
I wonder if anyone (who thinks that the crucifixion took place on the 6th day of the week and who thinks that the "heart of the earth" is referring to the tomb) knows of any writing which shows a phrase from the first century or before which states a specific number of days and/or a specific number of nights when the actual period of time absolutely couldn't have included at least parts of each one of the specific number of days and at least parts of each one of the specific number of nights?
And remember, the purpose of this topic is not to discuss how long the Messiah was in the heart of the earth. There are other topics that do that. However, for those who say that Matthew 12:40 is using common Jewish idiomatic language I should think that one would have to know of other instances where the same pattern was used in order to say that it was common. I am simply looking for some of those instances, scriptural or otherwise.