And these written by name came in the days of Hezekiah king of Judah, and smote their tents and the habitations that were found there, and destroyed them utterly unto this day, and dwelt in their stead; for there was pasture there for their flocks.
1 Chronicles 4:39 And they went to the entrance of Gedor, as far as the east side of the valley, to seek pasture for their flocks.
1 Chronicles 4:40 And they found fat and good pasture, and a land widely extended and quiet and fertile, for they who had dwelt there formerly were of Ham.
1 Chronicles 4:41 And these written by name came in the days of Hezekiah king of Judah, and smote their tents and the habitations that were found there, and destroyed them utterly unto this day, and dwelt in their stead; for there was pasture there for their flocks.
1 Chronicles 4:42 And five hundred men of them, of the sons of Simeon, went to mount Seir, having at their head Pelatiah, and Neariah, and Rephaiah, and Uzziel, the sons of Jishi,
1 Chronicles 4:43 and they smote the rest of the Amalekites that had escaped; and they dwelt there unto this day.
The verse centers on "written", "name", "came", "days", "hezekiah", "king", "judah", and "smote". It is saying that the verse draws attention to "written" and "name", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 40's "And they found fat and good pasture..." into verse 42's "And five hundred men of them of...", so "written" and "name" belong inside that flow. In 1 Chronicles context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "written" and "name" with trust shaped by these words, not by a vague optimism outside the passage.