NET
36 Hezekiah and all the people were happy about what God had done for them, for it had been done quickly.
Darby
36 And Hezekiah rejoiced, and all the people, that God had prepared the people; for the thing was done suddenly.
KJV
36 And Hezekiah rejoiced, and all the people, that God had prepared the people: for the thing was [done] suddenly.