In the sentence provided, the appositive is "death, sorrow, crying, pain."
To underline the appositive, it would look like this:
"Trials of this life, death, sorrow, crying, pain, will not disappear until the creation of the new heaven and earth."
To demonstrate the connection, you would draw an arrow from the appositive phrase "death, sorrow, crying, pain" to the word it renames, which is "Trials."
Here's a visual representation of how you might mark it up (assuming you can visualize drawing an arrow):
- Trials of this life, death, sorrow, crying, pain (← Arrow pointing to "Trials"), will not disappear until the creation of the new heaven and earth.
This shows that "death, sorrow, crying, pain" are examples of the trials referred to in the sentence.