douglang - 04 February 2009 01:12 PM
As the next line is “I pray my Lord my soul to keep”, I would suggest the past tense as being altogether more appropriate.
And if I die before I wake,
I pray my Lord my soul to take.
Well, personally I would say the present tense, as all the other verbs you quote are in the present. (Now I lay = now I am laying.) Otherwise the sequence of tenses would be wrong.
That means we have the verb ‘to lay’, which is transitive. The reflexive object would normally be myself, but me is used as a poetic alternative.
The situation regarding ‘sat us down’ is somewhat different, as sat is normally intransitive. Here the poetic device is the addition of a grammatically unnecessary object.