Echo string to .txt file with multiple lines - with Windows Batch file

I am attempting to create a Windows Batch File that creates a .txt with mulitple lines. I've tried several solutions to insert a line break in the string but no avail. There are other similar questions/answers but none of them address putting the entire string into a text file.

My batch file currently reads:

echo Here is my first line
Here is my second line > myNewTextFile.txt
pause

my goal is to have the text file read:

Here is my first line
Here is my second line

Obviously, this does not work currently, but wondering if anyone knows how to make this happen in a simple fashion?

(
echo Here is my first line
echo Here is my second line
echo Here is my third line
)>"myNewTextFile.txt"
pause

Just repeat the echo and >> for lines after the first. >> means that it should append to a file instead of creating a new file (or overwriting an existing file):

echo Here is my first line > myNewTextFile.txt
echo Here is my second line >> myNewTextFile.txt
echo Here is my third line >> myNewTextFile.txt
pause

Searching for something else, I stumbled on this meanwhile old question, and I have an additional little trick that is worth mentioning, I think.

All solutions have a problem with empty lines and when a line starts with an option for the echo command itself. Compare the output files in these examples:

call :data1 >file1.txt
call :data2 >file2.txt
exit /b

:data1
echo Next line is empty
echo
echo /? this line starts with /?
echo Last line
exit /b

:data2
echo:Next line is empty
echo:
echo:/? this line starts with /?
echo:Last line
exit /b

Now, file1.txt contains:

Next line is empty 
ECHO is off. 
Displays messages, or turns command-echoing on or off.

  ECHO [ON | OFF]
  ECHO [message]

Type ECHO without parameters to display the current echo setting. 
Last line

While file2.txt contains:

Next line is empty

/? this line starts with /?
Last line

The use of echo: miraculously solves the issues with the output in file1.txt.

Besides the colon, there are other characters that you could 'paste' to echo, among them a dot, a slash, ... Try for yourself.

STEP 1: Enter Line 1 followed by the ^ character.

echo Here is my first line^ 

STEP 2: Hit RETURN key to get a prompt for more text

echo Here is my first line^ 
More?

STEP 3: Hit RETURN key once more to get a second prompt for more text

echo Here is my first line^ 
More?
More?

STEP 4: Continue line 2 from the second prompt

echo Here is my first line^ 
More?
More? Here is my second line

STEP 5: Hit the RETURN key to get 2 statements displayed on two separate lines

Results:

echo Here is my first line^ 
More?
More? Here is my second line
Here is my first line  
Here is my second line

NOTE
However, if you wish to save this to file, you could add a final STEP.
STEP 6: with the help of the > character, you can append the filename so you save your output to file instead.

echo Here is my first line^ 
More?
More? Here is my second line >"myNewTextFile.txt"

Example from CMD

Use this:

echo Here is my first line >> myNewTextFile.txt
echo Here is my second line >> myNewTextFile.txt