rejoice over (something)
To celebrate, revel, or make merry about or because of something. People flooded the streets rejoicing over the team's victory. Before you start rejoicing over the success of the project, we should take stock of how far back costs of the development set us.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
rejoice over something
to celebrate because of something. Everyone rejoiced over their good fortune. What happened to us next was nothing to rejoice over.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.