Exodus 10:23
They saw not one another, neither rose any from his place for three days: but all the children of Israel had light in their dwellings.
Cross-reference
Exodus 8:22 shows God setting apart Goshen to spare Israel from flies — same pattern as Israel having light while Egypt is in darkness.
Exodus 9:26 notes Goshen had no hail — exactly the spared-while-judged pattern as Israel having light in the midst of darkness.
Exodus 14:20 uses a cloud to give darkness to Egyptians and light to Israel — a direct echo of the plague where Israel has light amid darkness.
Exodus 11:7 explicitly states the Lord makes a distinction between Egypt and Israel — the same dividing line seen in the darkness plague.
Joshua 24:7 recounts God putting darkness between Israel and Egypt at the Red Sea — referencing the same protective darkness/light pattern.
Colossians 1:13 uses the Exodus darkness/light imagery: delivered from darkness to Christ's kingdom, fulfilling the pattern of Israel's deliverance.
1 Peter 2:9 echoes Exodus: God called Israel out of Egyptian darkness into light, now applied to the church as a chosen people.
Amos 4:7 describes God's selective judgment — rain on one city, not another — mirroring the selective darkness/light in Exodus.