Which theme from Macbeth do these lines support?
Say from whence
You owe this strange intelligence, or why
Upon this blasted heath you stop our way
With such prophetic greeting? Speak, I charge you.

The answer is "Things are not always what they seem."

Explanation:

Macbeth discovers that things are not generally what they appear. He starts as a fighter battling for King Duncan and Scotland. He appears to be substance to be a savage trooper. Lord Duncan offers respect to Macbeth for his remarkable military administration. At that point Macbeth changes. He starts to desire the royal position that has a place with King Duncan.

Macbeth isn't as faithful to King Duncan as it would have appeared. After the witches plant "dark and profound wants" into Macbeth's heart, things are not what they appear.

what is the context here? we need to know what story you're talking about : )

huck's relationship with food is a prominent theme throughout the novel, and during his time on jackson's island and working his way down river, huck revels in and enjoys his ad hoc dining. in the first chapter, we observe huck is ironically trapped in a "civilized" world, when he would prefer to live freely in nature.