At Haggai 2: 5, the prophet reminded the Jews of the covenant that God established with them at Mount Sinai when “the whole mountain was trembling very much. ”
فِي حَجَّاي ٢ :‏ ​ ٥‏ ،‏ يُذَكِّرُ ٱلنَّبِيُّ ٱلْيَهُودَ بِٱلْعَهْدِ ٱلَّذِي قَطَعَهُ ٱللهُ مَعَهُمْ فِي جَبَلِ سِينَاءَ عِنْدَمَا كَانَ ‹ ٱلْجَبَلُ يَرْتَعِدُ كُلُّهُ كَثِيرًا › .‏