The consensus of modern scholarship is that the New Testament accounts represent a crucifixion occurring on a Friday, but a Thursday or Wednesday crucifixion have also been proposed. Some scholars explain a Thursday crucifixion based on a "double sabbath" caused by an extra Passover sabbath falling on Thursday dusk to Friday afternoon, ahead of the normal weekly Sabbath. Some have argued that Jesus was crucified on Wednesday, not Friday, on the grounds of the mention of "three days and three nights" in Matthew before his resurrection, celebrated on Sunday. Others have countered by saying that this ignores the Jewish idiom by which a "day and night" may refer to any part of a 24-hour period, that the expression in Matthew is idiomatic, not a statement that Jesus was 72 hours in the tomb, and that the many references to a resurrection on the third day do not require three literal nights.
On what day is it thought the first part of the New Testament was written?