If for some reason you need to display a custom message on WordPress login page, here is a quick and easy recipe to do it.

Nothing complicated, paste the code below in your functions.php file. Message can be customized on line 3.

 function wps_login_message( $message ) {     if ( empty($message) ){         return "<p class='message'>Welcome to this site. Please log in to continue</p>";     } else {         return $message;     } } add_filter( 'login_message', 'wps_login_message' ); 

Thanks to WP Snippy for the tip!