Quick Video to show you how to safely disconnect your gas oven.
See links below on how to install a new oven etc.
How to Install a Samsung Oven:    • How to fully Install a Gas Range/Oven...  
How to Replace a Gas oven (removal and install)    • How To Safely Replace your Gas Stove ...  

New Oven Installed: https://www.homedepot.com/p/Samsung-6...