Magento2 :: Get System Config Data Using Data Helper

<?php

namespace YourNamespace\Module\Helper;

class Data extends \Magento\Framework\App\Helper\AbstractHelper {
    /**
    * @var \Magento\Framework\App\Config\ScopeConfigInterface
    */
    protected $scopeConfig;

    /**
     * Recipient Top Static Block config path
     */
    const XML_PATH_CMS_BLOCK_TOP = 'section_id/groupid/field_id';

	public function __construct(
		\Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig
	) {
		$this->scopeConfig = $scopeConfig;
	}

    /**
    * function returning config value
    */

	public function getConfigData() {
	
		$storeScope = \Magento\Store\Model\ScopeInterface::SCOPE_STORE;
		return $this->scopeConfig->getValue(self::XML_PATH_EMAIL_RECIPIENT, $storeScope);
    }
}