How to fix the terminal "source" command on OSX Catalina

I try executing the below commands in my terminal.

$ source ~/.bash_profile or . ~/.bash_profile

and the system returns:

-bash: [[-s: command not found

I cannot think of anything extra information to provide.

I kept researching my issue and came across this stackoverflow post

I initially misunderstood the error message to mean the source command was not found. After reading the other post I tried running bash .bash_profile and the result was .bash_profile: line 11: [[-s: command not found. I had an error in my .bash_profile file. I commented out the line and tried running source .bash_profile and it worked.

The initial command not found did not relate to the source command, it related to the file I was running with source.

I hope this helps someone else.