wiring a light fixture with a two hots and two neutrals
Connect all the (colored) hot wires together. Connect all the (white) neutral wires together.
The white neutral wire out of a light fixture must be connected to neutral. The black hot wire out of a light fixture must be connected to hot and a white wire (such as coming from a switch) may not be used for this connection.
The average homeowner who lost his house in the Oklahoma tornadoes should move for good and not rebuild. Too much complexity watchdogging the contractor. Too much a chance to be defrauded.