I need more information to answer this.
Answer:
"It is then I realize, even in the valley of the shadow of death I find peace"
Explanation:
The topic sentence is the most important sentence in the paragraph, the one that provides the basis for all other sentences and that expresses the theme that that paragraph wants to convey.
In the paragraph shown in the question above, we can see that the theme is about divine help in times of need, fear and despair. In this case, we can say that the topic sentence is "It is then I perform, even in the valley of the shadow of death I find peace," since this is the sentence that provides the basis for all the information shown in the paragraph.
