האשה וילדיה תהיה לאדניה
There is a גמרא, I believe it is in בבא קמא but I could not locate it, which discusses the use of a singular verb in reference to plural subjects as acceptable in תנ"ך. However, in all of the examples discussed there the verb precedes the subjects. However, the above פסוק demonstrates that it can occur in the reverse as well. One would have expected the פסוק to read האשה וילדיה יהיו לאדניה but apparently תהיה suffices.