dumb question

[David Christopher]

How do I change the path the guile looks for my .scm files.  Rigjht now it
looks in /home/david  but I put my dinky little "newbee" files in
/home/david/Documents.

I tried "PATH=$PATH:$HOME/Documents" and "PATH=$PATH:$HOME/david/Documents"
from the terminal while in /home/david .

That does not work from the terminal or within in guile.

I do not understand instructions given to me to edit /home/david/.profile

thanks