Luke 12:25

To Him then leave the care of directing the body, by whose aid you see it to come to pass that you have a body of such a stature.

Tell me, pray, what profit do you gain from worrying? Do you add to your stature even the smallest measure? No, on the contrary, you even exhaust your body, for worry withers it.

He stirs them up to watchfulness for their Master's coming, from the consideration of the reward of those who are then found faithful, and the punishment of those who are found unfaithful,

We have in these verses—a collection of striking arguments against over-anxiety about the things of this world. At first sight they may seem to some minds simple and common. But the more they are pondered—the more weighty will they appear. An abiding recollection of them would save many Christians an immense amount of trouble. Christ bids us consider the RAVENS. "They neither sow nor reap. They have neither storehouse nor barn. But God feeds them."

We have in these verses—a collection of striking arguments against over-anxiety about the things of this world. At first sight they may seem to some minds simple and common. But the more they are pondered—the more weighty will they appear. An abiding recollection of them would save many Christians an immense amount of trouble. Christ bids us consider the RAVENS. "They neither sow nor reap. They have neither storehouse nor barn. But God feeds them." Now if the Maker of all things provides for the needs of birds, and orders things so that they have a daily supply of food—then we surely ought not to fear that He will let His spiritual children starve! Christ bids us look at the LILIES. "They do not toil nor spin—yet Solomon in all his glory was not arrayed like one of these." Now if God every year provides these flowers with a fresh supply of living leaves and blossoms—then we surely ought not to doubt His power and willingness to furnish His believing children with all needful clothing. Christ bids us to remember that a Christian should be ashamed of being as worried as the heathen are. The pagan world may well be worried about food, and clothing and the like. They are sunk in deep ignorance, and know nothing of the real nature of God. But the man who can say of God, "He is my Father," and of Christ, "He is my Savior—ought surely to be above such anxieties and cares. A clear faith in God's providential care, should produce a light trustful heart. Finally, Christ bids us think of the perfect knowledge of God. Our Father knows that we have need of food and clothing. That thought alone, ought to make us content. All our needs are perfectly known to the Lord of Heaven and earth. He can relieve those needs—whenever He sees fit. He will relieve them—whenever it is good for our souls.

To his stature one cubit? - See on Mat 6:27 (note).