How we cite our quotes: (Section.Subsection.Paragraph)
Quote #1
Nothing in this Act shall be construed to authorize or to permit the authorization of convoying vessels by naval vessels of the United States. (5.d)
Just because the U.S. is willing to help out a friendly country in need, doesn't mean its Navy is going to accompany anything, especially not other nation's boats, through international waters. So, don't be getting any funny ideas…
Quote #2
Nothing in this Act shall be construed to authorize or to permit the authorization of the entry of any American vessel into a combat area in violation of section 3 of the neutrality Act of 1939. (5.e.)
Again, you can pick apart this text any which way you please, but you won't find anything here suggesting the Navy will do so much as even dip the big toe of its youngest recruit into enemy waters.
Quote #3
The President may, from time to time, promulgate such rules and regulations as may be necessary and proper to carry out any of the provisions of this Act; and he may exercise any power or authority conferred on him by this Act through such department, agency, or officer as be shall direct. (9)
In the context of the Lend-Lease Act, Mr. President is gonna do what Mr. President wants to do, or get someone else to do it for him. For better or worse...