Passage
And it came to pass on the third day in the morning, that there were thunders and lightnings, and a thick cloud upon the mount, and the voice of the trumpet exceeding loud; so that all the people that was in the camp trembled.
And it came to pass on the third day in the morning, that there were thunders and lightnings, and a thick cloud upon the mount, and the voice of the trumpet exceeding loud; so that all the people that was in the camp trembled.
Exodus 19:14 And Moses went down from the mount unto the people, and sanctified the people; and they washed their clothes.
Exodus 19:15 And he said unto the people, Be ready against the third day: come not at your wives.
Exodus 19:16 And it came to pass on the third day in the morning, that there were thunders and lightnings, and a thick cloud upon the mount, and the voice of the trumpet exceeding loud; so that all the people that was in the camp trembled.
Exodus 19:17 And Moses brought forth the people out of the camp to meet with God; and they stood at the nether part of the mount.
Exodus 19:18 And mount Sinai was altogether on a smoke, because the LORD descended upon it in fire: and the smoke thereof ascended as the smoke of a furnace, and the whole mount quaked greatly.
The verse centers on "light", "came", "pass", "third", "morning", "thunders", "lightnings", and "thick". It is saying that the verse draws attention to "light" and "came", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 15's "And he said unto the people Be..." into verse 17's "And Moses brought forth the people out...", so "light" and "came" belong inside that flow. In Exodus context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "light" and "came" with trust shaped by these words, not by a vague optimism outside the passage.