What do the demonstrative and adjective add in hādhā al-balad al-amīn?

Supplementary Practice 26 — Comparative Rhetoric of Sūrat al-Qāriʿah and Sūrat al-Tīn

• Negating the agent of a passive verb
• Necessarily fronting the predicate of kāna
• Creating an exception by the presence of wāw
• Pointing to a definite city and highlighting its security