First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main topic of dragons in the Bible. It does not need another sentence for context. It is a general statement about the dragon's greed. Why other lines are not chosen? Paragraph 2 starts with 'It' which is a pronoun and needs context. Paragraph 3 starts with 'You' which makes it less general. Paragraph 4 starts with 'Their' which also needs prior context.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it wraps up the discussion about dragons. It gives a final example of a dragon myth, showing how good overcomes evil, which connects back to the main theme.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects with Paragraph 1 because it continues the story of the dragon. The phrase 'It was defeated' refers back to the dragon in Paragraph 1. This shows a cause and effect relationship.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects with Paragraph 2 because it introduces another myth about dragons. The phrase 'similar myth' shows a logical order from the specific story of the dragon to a broader topic.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects with Paragraph 3 because it gives an example of the myth mentioned in Paragraph 3. The phrase 'Their dragon, Apophis' shows a specific example that follows the general statement.