Because he was going to force people to go to church and them not have a choice.
The appositive is usually a group of words related to a noun, usually a subject, and describes it in more detail.
The appositive here is a river that flows through Egypt.
Another way of easily spotting an appositive is by looking for commas - if it is separated from the rest of the sentence by commas, it is likely to be an appositive.
1. Repetition
And a pain still throbs in the <u>old, old</u> scars
2. Simile
And the river flows <u>like a stream of glass</u>;
3. Personification
Till <u>its blood is red</u> on the cruel bars;
4. Alliteration
When he <u>beats</u> his <u>bars</u> and he would be free;
5. Personification
When his wing is bruised and <u>his bosom sore</u>,--
6. Alliteration
When the wind <u>stirs soft</u> through the springing grass,
If you need more explanation for any of these questions, just ask and I'll explain it in more depth :)
Good luck!
-T.B.
I think you forgot to put the answers