Samuel Johnson said that quote on April 7, 1775
I believe you are referring to the book of John in the bible
the book of john cautions against syncretism of christian religion and the holding of doctrines that are heretical.
syncretism is the mixing of various views into a culture or religion, that was spreading quickly in the early church.
The correct answer to this open question is the following.
Unfortunately, you forgot to attach the excerpt of the speech. Without the speech, we do not know what you are referring to.
However, trying to help you we can comment on the following based on our knowledge of the topic.
The economic problems that President Roosevelt had to face when he became President of the United States were the result of the Great Depression that started after the United States stock market crash on October 29, 1929.
That is why he immediately created the New Deal, a series of programs and legislation to help the millions of American citizens that had lost their jobs after the stock market crash.
The New Deal was good for America during the Great Depression and had a positive impact on the US because the economic situation was the worst in the history of the country.
Under the New Deal, the federal government created the Tennessee Valley Authority Act, the Work Progress Administration, the Social Security Act, the Civilian Conservation Corps, the Social Security Administration, and many others.