What metaphors are used in King John by William Shakespeare?

Examples of Metaphor

There is so hot a summer in my bosom,
That all my bowels crumble up to dust:
I am a scribbled form, drawn with a pen
Upon a parchment, and against this fire
Do I shrink up.

The cannons have their bowels full of wrath,
And ready mounted are they to spit forth
Their iron indignation ’gainst your walls.

To solemnize this day the glorious sun
Stays in his course and plays the alchemist,
Turning with splendour of his precious eye
The meagre cloddy earth to glittering gold.