פירוש על ברכות 7:9

Making merriment.

So M. Edd. read "stained with [menstrual] blood, with foetus and placenta." In certain cases an abortive embryo would not make a woman liable to the restrictions of Lev. xii. 2 ff., and David is represented as deciding such a question as this instead of feasting.

Cf. II Sam. ix. 13 where it is stated, "But Mephibosheth dwelt in Jerusalem ; for he did eat continually at the king's table." This is the only reference to intimate relations existing between them.