good (Lord|God|Heavens)
1
used to show disbelief, shock, or surprise at something that has been said or done
The idiom "good Lord" is used to express the feeling if surprise, confusion, or amazement. While the exact origin of this idiom is difficult to trace, it has been in use for a long time in the English language, often as an interjection to react to something unexpected or astounding. This expression is commonly used in informal and spoken language to express strong emotions or reactions.
- Good Lord, I can't believe how much weight he's lost!
- Good Lord, that thunderstorm last night was intense!
- Good God, the magnitude of the earthquake was terrifying."
- Good God, when I heard the news, I was deeply shocked.
- Good Heavens, the sheer size of that mansion is mind-boggling.