Paul does not want the newly converted Christians to return to the practices required by the Law. With Christ, the practices of the Law are what Paul now sees as "religious bondage". While there are benefits of obeying out of duty and fear, God wants a relationship out of love. Paul speaks on the consequences of trying to go back to the Law and earn righteous merit with God, especially since we are unable to do it. The Law is REQUIRED to be done perfectly and completely. Jesus Christ fulfilled the Law perfectly and completely, and out of love, provides that righteousness to you, if you choose to receive it. All that is required through Christ is that you accept, receive, and trust Him by faith. The Holy Spirit, if you yield to him, does the rest.