Answer:
The incredible coincidence that surround the appearance of the messenger from Corinth and the shepherd was that he was both the messanger, and once he had been the shepard that found a baby on the woods near Thebes who he had helped, that baby happened to be Oedipus.
Explanation:
The messanger that was coming to tell Oedipus that his father Podipus was dead, was the same shepard that years ago found Oedipus abandoned. It was an incredible coincidence that he was giving a message to a man, that years ago he met as a baby.
Breaking down "nature of this covenant"...
<em>Nature</em> refers to the characteristics of the covenant
A<em> covenant </em>is an agreement, sort of like an informal contract
While you didn't provide us with Chapter 19, versus 5 and 6, reading the rest of the question it can be inferred God is telling the Israelites to "keep his covenant."
To answer the question "What is the nature of this covenant?" read the chapter and ask yourself the following questions:
Is God stern with the Israelites? Helpful? Angry? Happy? Does He feel bad for them? Does He take pity on them? Are they loyal to God?
Does God get more out of the covenant than the Israelites do? Who does the covenant benefit more?
How do the Israelites feel about the covenant? How do they feel about their current situation in general? Does the convenant calm them? Inspire them?
This depends on who you consider to be the author. If the author in your case would be a famous old historian, then they would probably marvel at the architectural accomplishments of ancient Rome and how they were able to create such magnificent structures in such a short amount of time.
B) False, because the revolution pushed Americans to want to expand westward.