Ryght true it is : and said full yore agoo

Ryght true it is : and said full yore agoo :
" Take hede of him that by thy back the claweth " ;
For none is wourse than is a frendely ffoo :
Though they seme good : all thing that thee deliteth :
Yet knowe it well, that in thy bosom crepeth ;
For many a man such fier oft kyndeleth,
That with the blase his berd syngeth.