Since God was able to get creation (not a small job) finished in six days, why do Christians need seven days to get their work done?

I posed a question to the ACL listserv: If your library is open on Sunday, why? My question was meant to elicit reasons, or justifications, from those who choose to open on Sunday. A number of thoughtful responses returned. It is clear that many librarians struggle with this issue, both on a personal and professional level. Some have solved the problem to their satisfaction; others have assumed a pragmatic stance - they do what they have to do.