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

(
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