if( !function_exists( 'shortcode_bethlehem_recent_posts_widget' ) ) {
	function shortcode_bethlehem_recent_posts_widget( $atts = array(), $content = null ) {

		$default_atts = array(
			'title'			=> '',
			'pre_title'		=> '',
			'limit'			=> '',
			'type'			=> '',
			'show_date'		=> '',
			'el_class'		=> '',
	    );

	    extract( array_merge( $default_atts, $atts ) );

		$widget = 'Bethlehem_Widget_Recent_Posts';

		$instance = array(
				'title'			=> $title,
				'type'			=> $type,
				'number'		=> $limit,
				'show_date'		=> $show_date,
			);

		$before_widget = '<div class="widget vc_widget_recent_posts ' . esc_attr( $type ) .' '. esc_attr( $el_class ) . '">';
		$after_widget = '</div>';
		if( !empty( $pre_title ) ) {
			$before_title = '<h3 class="pre-title">'.$pre_title.'</h3><h3 class="widget-title">';
			$after_title = '</h3>';
		} else {
			$before_title = '<h3 class="widget-title">';
			$after_title = '</h3>';
		}

		$args = array(
				'before_widget'	 => $before_widget,
				'after_widget'	 => $after_widget,
				'before_title'	 => $before_title,
				'after_title'	 => $after_title
			);

		$output = '';

		add_action( 'pre_get_posts', 'custom_blog_widget_category' );
		ob_start();
		the_widget( $widget, $instance, $args );
		$output .= ob_get_clean();
		remove_action( 'pre_get_posts', 'custom_blog_widget_category' );

		return apply_filters( 'shortcode_beth_recent_posts_widget' , $output );
	}
}

function custom_blog_widget_category( $query ) {
	$query->set( 'cat', '7'); // Add your category id here
}