The posy is hard to read, but the website was updated on 9July2014 with this intrepretation:
I knowe full well ye bent of ye bowe
Ther is wth ye but a woorde & a blowe
Well att ease shell ye neighbore be
That dwels not next betwixt ye ichurche and the
I’m hoping the Cuming museum has a complete set, at the moment it’s hard to tell from their website.