The first thing you should do is to create a new page for your blog. This will serve as your static home page but, for now, it will look and act like any other page in your site.

To make this page, you'll need to go to the main menu of the Blogger dashboard and click on the "Pages" option on the left side on the screen. Doing this will lead you to the "All Pages" menu window. Here, click on the "New Page" button and you'll enter an editor that looks similar to the Blogger Post editor that you use when publishing a new blog post.

creating a new page
At the top box, enter the title that you want for this page - in this case, let's call it the "Welcome" page. In the larger text box, type the content that you want to appear on your home page; this can be a paragraph, or two about yourself or your business and what your site is all about

publishing your new page
Once you're done, click "Publish". The window will return to the main "All Pages" menu, and you'll see the new "Welcome" page you've created. Copy the URL of the "Welcome" page since you'll need it later on. To do this, right click on the 'View' link and select 'Copy Link Location' from the menu.

return to All Pages

Redirect the default home page to the static one

Once your "Welcome" page is up, the next thing you should do is to change Blogger's default homepage. This involves redirecting from your site's original home page to the static homepage that you've created so it would be the first thing that people see when they visit your website.

To do this, you'll need to go to main Blogger editor menu, click on "Settings" on the left side of the screen, and choose "Search Preferences". Under the "Errors and redirections" section, you'll see the "Custom Redirects" option with an "Edit" link beside it. Click on the "Edit" link to open another window, where you'll see two boxes named "From" (with your blog's URL beside it) and "To".

Redirect the default home page to the static one
In the "From" box, enter only a forward slash symbol "/". In the "To" box, paste the URL that you copied earlier and add the latter part of the URL of the "Welcome" page. For instance, the page's URL of our demo blog is static-home-page.blogspot.com/welcome.html, so we'll remove the "http://static-home-page.blogspot.com" address and add only "/p/welcome.html" in the "To:" box. The "/p" signifies that it's a static page.

Next, check the little box beside "Permanent", click on the "Save" text link, and press the "Save changes" button. Doing these will redirect your site's main URL to its new static home page. Access your blog on a separate browser to see if it works.

So that's it!