10 The service was arranged and the priests stood in their places with the Levites in their divisions as the king had ordered.

Read 2 Chronicles 35:10 Using Other Translations

So the service was prepared, and the priests stood in their place, and the Levites in their courses, according to the king's commandment.
When the service had been prepared for, the priests stood in their place, and the Levites in their divisions according to the king's command.
When everything was ready for the Passover celebration, the priests and the Levites took their places, organized by their divisions, as the king had commanded.