“If we abide by the principles taught in the Bible, our country will go on prospering and to prosper; but if we and our posterity neglect its instructions and authority, no man can tell how sudden a catastrophe may overwhelm us and bury all our glory in profound obscurity.”
First reported in the Annual Report of the Massachusetts Bible Society (1870), p. 27. This is actually a misquote combining phrases from different lines in an address delivered by Webster to the New York Historical Society on February 23, 1852.
Misattributed
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Daniel Webster 62
Leading American senator and statesman. January 18, 1782 – … 1782–1852Related quotes

“In prosperity our friends know us; in adversity we know our friends.”

2000s, God Bless America (2008)

"A University's Bequest to Youth" (10 October 1936)
Canadian Occasions (1940)

2015, State of the Union Address (January 2015)
Context: When we make rash decisions, reacting to the headlines instead of using our heads; when the first response to a challenge is to send in our military -- then we risk getting drawn into unnecessary conflicts, and neglect the broader strategy we need for a safer, more prosperous world. That’s what our enemies want us to do. I believe in a smarter kind of American leadership. We lead best when we combine military power with strong diplomacy; when we leverage our power with coalition building; when we don’t let our fears blind us to the opportunities that this new century presents. That’s exactly what we’re doing right now. And around the globe, it is making a difference. [... ] That’s how America leads -- not with bluster, but with persistent, steady resolve.

Speech in the U.S. Senate (2017)
Context: When a leader correctly identifies real hurt and insecurity in our country, and instead of addressing it, goes to look for someone to blame, there is perhaps nothing more devastating to a pluralistic society. Leadership knows that most often a good place to start in assigning blame is to look somewhat closer to home. Leadership knows where the buck stops.Humility helps, character counts. Leadership does not knowingly encourage or feed ugly or debased appetites in us. Leadership lives by the American creed, “E pluribus unum.” From many one. American leadership looks to the world and just as Lincoln did, sees the family of man. Humanity is not a zero sum game. When we have been at our most prosperous, we have been at our most principled, and when we do well, the rest of the world does well.

At a Conservative Way Forward event. http://www.thetimes.co.uk/edition/news/uk-business-is-too-lazy-and-fat-and-prefers-to-play-golf-says-liam-fox-tbqpt5r97 (September 10, 2016)
2016
“Prosperity and security are ours in heaven. We will live in peace and safety.”
Source: Heaven Revealed (Moody, 2011), p. 125
"On Living with Dignity in China"
No Enemies, No Hate: Selected Essays and Poems

India. Parliament. House of the People (2003) Lok Sabha Debates. p. 45.