From where in King Lear comes the following quote We two will be like spies?

Answer 1

That sounds like a garbled version of something King Lear says in Act V, Scene 3 :

No, no, no, no! Come, let's away to prison:

We two alone will sing like birds i' the cage:

When thou dost ask me blessing, I'll kneel down,

And ask of thee forgiveness: so we'll live,

And pray, and sing, and tell old tales, and laugh

At gilded butterflies, and hear poor rogues

Talk of court news; and we'll talk with them too,

Who loses and who wins; who's in, who's out;

And take upon's the mystery of things,

As if we were God's spies: and we'll wear out,

In a wall'd prison, packs and sects of great ones,

That ebb and flow by the moon.

Except in Act III, Scene 1 where the Earl of Kent says:

There is division

(Although as yet the face of it be cover'd

With mutual cunning) 'twixt Albany and Cornwall; 1640

Who have (as who have not, that their great stars

Thron'd and set high?) servants, who seem no less,

Which are to France the spies and speculations

Intelligent of our state

- there are no other mentions of spies in The Scottish Play