28 Come to Me, all you who labor and are heavy laden, and I will give you rest. 29 Take My yoke upon you and learn from Me, for I am gentle and lowly in heart, and you will find rest for your souls. 30 For My yoke is easy and My burden is light.
Matthew 11:28-30 (NKJV)
(Yokes were put on the necks of animals, so that they could pull a plow or wagon. A yoke was a symbol of obedience and hard work.)