3 In which the birds sang many a lovely lay

lay > song

4 Of God's high praise, and of their loves' sweet teen,

praise > praiseworthiness, merit teen > pain

5 As it an earthly paradise had been:

As > [As if]

6 In whose enclosed shadow there was pight

pight > pitched, placed

7 A fair pavilion, scarcely to be seen, 8 Which was all within most richly dight,

dight > arrayed