“And Josiah set the priests in their charges, and encouraged them to the service of the house of the Lord”- 2Chronicles 35:2

Josiah, as you remember, in the early part of his reign set his face against the idolatries that prevailed, to root them out of the land. He then bent his thoughts upon repairing and beautifying the temple. After that it was his heart’s aim to restore the sacred services, to observe the solemn feasts, and to revive the worship of God after the due order, according to the words of the book of the covenant that was found in the house of the Lord. Our text tells us something of the method with which he went to work; and it may well serve us as a model.

The first thing is to get every man into his proper place; the next thing is for every man to have a good spirit in his present place, so as to occupy it worthily. I will suppose, dear friends, that in the providence of God you are in your place, and that by the direction of God’s Spirit you have also sought and found the precise form of usefulness in which you ought to exercise yourself.

I would speak a little to those who think that they can do nothing…Sometimes there is a want of way because there is a want of will. Though I do not go so far as to allege that this is your case, we know too well that “cannot” often does mean “will not,” and not to have triumphed may mean that you have not tried. You have been so discouraged that you have excused yourself for inaction, and your inaction has grown into indolence. If a man, under the notion that he could not lift his right hand, constantly kept it still, I should not wonder if, after weeks and months, it would become a matter of fact that he had not the power to use it. It might actually stiffen for no reason but because he had not moved it. Do you not think that, before your muscles get rigid, it would be well to exercise them by attempting some kind of service? Especially you younger folk, if you do not work for the Lord almost as soon as you are converted it will be very difficult afterwards to make you take to it. Aptitude, I have often noticed, comes with employment, and through negligence and sloth people become enervated and helpless. You say that you cannot move your arm, and so you do not move it; take heed, for by-and-by your pretence will become the parent of real powerlessness. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1513.cfm