How do i display post from a taxonomy term?

Try this.

$type="buehne";  // Name of the Custom Post Types
$tag =  'TagName';


$args =  array(
        'post_type' => $type, 
        'paged' => $paged,
        'posts_per_page' => -1, 
        'orderby' => 'menu_order',
        'order' => 'ASC', 
                'tax_query'=>array(
                    array(
            'taxonomy'=>'th3', //name of the Taxonom 
            'field'=>'slug',
            'terms'=>array($tag)
                            ))
                    );



$loop = new WP_Query( $args );
while ( $loop->have_posts() ) : $loop->the_post();
    if(is_object_in_term($post->ID,'th3','TagName')) {  
        the_title(); ";

    }
endwhile;