Static Intro Post

Hi,
Normally the way WordPress works is that it puts the newest posts at the top of the page and as newer posts are added the original top post moves down the page. Is there a way to have an initial “Static” into post that maintains its postition at the top of the page and stays then and all new posts are inserted beneath that? I have an intro explanatory post and assocated podcast media file that I want to remain at the top of the page. Thanks in advance for your help. Thanks in advance for your help.
All the best,
Ted Sudol