Many dog trainers and owners practice the «no free lunch» approach - they have the dog perform a simple act of obedience before giving him a treat or his meal. (paw-rescue.org)
Water Baptism is a simple act of obedience in faith, understanding, and belief, that Jesus paid the price of sin for us and only through this his blood can we gain heaven. (redeeminggod.com)
The dying on the Cross was the ultimate Act of Obedience by Jesus to the Father. (religion.blogs.cnn.com)