in the lines 12-17 do not requier a pause in macbeth?

I think that you are referring to Macbeth's whole invite to Banquo for their "solemn supper". He really intends to have Banquo and Fleance killed hence the pause. Check this out,

MACBETH

Here’s our chief guest.

MACBETH

(indicating BANQUO) Here’s our most important guest.

LADY MACBETH

If he had been forgotten,

It had been as a gap in our great feast,

And all-thing unbecoming.

LADY MACBETH

If we forgot him, our big celebration wouldn’t be complete, and that wouldn’t be any good.

MACBETH

Tonight we hold a solemn supper, sir,

And I’ll request your presence.