Override the standard WordPress password messages

functions.php

/*
 * Change the password reset text
 * 
**/
function change_password_reset_text_filter( $translated_text, $untranslated_text, $domain ) {

    switch( $untranslated_text ) {

        case 'Enter your new password below.':
          $translated_text = __( 'A system generated password has been created for you. If you wish to use this, please make sure you store it somewhere safe.','text_domain' );
        break;

        case 'New password':
          $translated_text = __( '<h3>Password</h3>To change this to something more personal and memorable, please type a new password in the box below.<br/><br/>','text_domain' );
        break;
        
        case 'Hint: The password should be at least twelve characters long. To make it stronger, use upper and lower case letters, numbers, and symbols like ! " ? $ % ^ &amp; ).':
        case 'Hint: The password should be at least twelve characters long. To make it stronger, use upper and lower case letters, numbers, and symbols like ! \" ? $ % ^ &amp; ).':

            $translated_text = __( 'Please click Set Password when you are ready.<br/><br/>You will always be asked to enter your username and password when entering the site.','text_domain' );
        break;
        
        case 'Reset Password':
            $translated_text = __( 'Set Password','text_domain' );
        break;
        
        case 'Your password has been reset.':
            $translated_text = __( 'Your password has been set.' );
        break;
        
        case 'Lost your password?':
            $translated_text = __( 'Click here to reset your password' );
        break;
   }
   return $translated_text;
}
add_filter('gettext', 'change_password_reset_text_filter', 20, 3);

Wow....This is amazing. Tipping my had to the people who made this.