My dearest love, Duncan comes here tonight

Macbeth
My dearest love,
Duncan comes here tonight.
Lady Macbeth
And when goes hence?
Macbeth
Tomorrow, as he purposes.

Your face, my thane, is as a book where men
May read strange matters. To beguile the time,
Look like the time.

Lady Macbeth
O, never
Shall sun that morrow see!
Your face, my thane, is as a book where men
May read strange matters. To beguile the time,
Look like the time. Bear welcome in your eye,
Your hand, your tongue. Look like th' innocent flower,
But be the serpent under ‘t. He that's coming
Must be provided for; and you shall put
This night's great business into my dispatch,
Which shall to all our nights and days to come
Give solely sovereign sway and masterdom.
Macbeth
We will speak further.
Lady Macbeth
Only look up clear.
To alter favor ever is to fear.
Leave all the rest to me.
  They exit.