Luke 12:25

which of you, &c.--Corroding solicitude will not bring you the least of the things ye fret about, though it may double the evil of wanting them. And if not the least, why vex yourselves about things of more consequence?

In this chapter we have divers excellent discourses of our Saviour's upon various occasions, many of which are to the same purport with what we had in Matthew upon other the like occasions; for we may suppose that our Lord Jesus preached the same doctrines, and pressed the same duties, at several times, in several companies, and that one of the evangelists took them as he delivered them at one time and another at another time; and we need thus to have precept upon precept, line upon line. Here, I. Christ warns his disciples to take heed of hypocrisy, and of cowardice in professing Christianity and preaching the gospel (Luk 12:1-12). II. He gives a caution against covetousness, upon occasion of a covetous motion made to him, and illustrates that caution by a parable of a rich man suddenly cut off by death in the midst of his worldly projects and hopes (Luk 12:13-21). III. He encourages his disciples to cast all their care upon God, and to live easy in a dependence upon his providence, and exhorts them to make religion their main business (Luk 12:22-34). IV. 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 (Luk 12:35-48). V. He bids them expect trouble and persecution (Luk 12:49-53). VI. He warns the people to observe and improve the day of their opportunities and to make their peace with God in time (Luk 12:54-59).

12:25 add a single moment to your life (literally add a single cubit to his length): Worry cannot add even one step on the road of life.