These were the sons of Levi after the house of their fathers; even the chief of the fathers, as they were counted by number of names by their polls, that did the work for the service of the house of the LORD, from the age of {e} twenty years and upward.

(e) David chose the Levites twice, first at the age of thirty as in 1Ch 23:3 and again afterward at twenty as the office required: at the beginning they had no charge in the temple before they were twenty-five years old, and had none after fifty, Nu 4:3.

Wesley's Notes

23:24 Twenty years - As the Levites were anciently numbered from two several times, from the twenty fifth year of their age, and from the thirtieth, Numb 4:3 8:24. In like manner they are here numbered both from their twentieth year, when they were solemnly prepared for, and instructed, and by degrees exercised in some parts of their work; and from their thirtieth year, when they were admitted to the full exercise of their office. And the reason why they were now sooner admitted to service than they had been formerly, is given in the next verse s because now their work was more easy, being wholly discharged from that burdensome work of carrying the tabernacle. Besides the people of Israel were multiplied: therefore more hands were necessary, that every Israelite who brought an offering, might find a Levite ready to assist him.

Jamieson-Fausset-Brown Bible Commentary

1Ch 23:24-32. Office of the Levites.

24-27. These were the sons of Levi . that did the work . from the age of twenty years and upward-The enumeration of the Levites was made by David (1Ch 23:3) on the same rule as that followed by Moses (Nu 4:3), namely, from thirty years. But he saw afterwards that this rule might be beneficially relaxed, and that the enrolment of Levites for their proper duties might be made from twenty years of age. The ark and tabernacle being now stationary at Jerusalem, the labor of the Levites was greatly diminished, as they were no longer obliged to transport its heavy furniture from place to place. The number of thirty-eight thousand Levites, exclusive of priests, was doubtless more than sufficient for the ordinary service of the tabernacle. But this pious king thought that it would contribute to the glory of the Lord to employ as many officers in his divine service as possible. These first rules, however, which David instituted, were temporary, as very different arrangements were made after the ark had been deposited in the tabernacle of Zion.

Matthew Henry's Concise Commentary

23:24-32 Now the people of Israel were so many, there should be more employed in the temple service, that every Israelite who brought an offering might find a Levite ready to help him. When more work is to be done, it is pity but there should be more workmen. A new heart, a spiritual mind, which delights greatly in God's commandments, and can find a refreshing feast in his ordinances, forms the great distinction between the true Christian and all other men in the world. To the spiritual man every service will yield satisfaction. He will be ever abounding in the work of the Lord; being never so happy as when employed for such a good Master, in so pleasant a service. He will not regard whether he is called to take the lead, or to keep the charge of others who are placed over him. May we seek and serve the Lord uprightly, and leave all the rest to his disposal, by faith in his word.

Matthew Henry's Whole Bible Commentary

Verses 24-32

Here is, I. An alteration made in the computation of the effective men of the Levites-that whereas, in Moses's time, they were not enlisted, or taken into service, till they were thirty-years old, nor admitted as probationers till twenty-five (Num. 8:24), David ordered, by direction from God, that they should be numbered for the service of the house of the Lord, from the age of twenty years and upwards, v. 24. This order he confirmed by his last words, v. 27. When he put his last hand to the draught of this establishment he expressly appointed this to be done for ever after; yet not he; but the Lord. 1. Perhaps the young Levites, having no work appointed them till twenty-five years old, had many of them got a habit of idleness, or grew addicted to their pleasures, which proved both a blemish to their reputation and a hindrance to their usefulness afterwards, to prevent which inconvenience they are set to work, and brought under discipline, at twenty-years old. Those that will be eminent must learn to take care and take care betimes. 2. When the work of the Levites was to carry burdens, heavy burdens, the tabernacle and the furniture of it, God would not call any to it till they had come to their full strength; for he considers our frame, and, in service as well as sufferings, will lay no more upon us than we are able to bear. But now God had given rest to his people, and made Jerusalem his dwelling-place for ever, so that there was no more occasion to carry the tabernacle and the vessels thereof, the service was much easier, and what would not over-work them nor over-load them if they entered upon it at twenty-years old. 3. Now the people of Israel were multiplied, and there was a more general resort to Jerusalem, and would be when the temple was built, than had ever been at Shiloh, or Nob, or Gibeon; it was therefore requisite there should be more hands employed in the temple-service, that every Israelite who brought an offering might find a Levite ready to assist him. When more work is to be done it is a pity but there should be more workmen fetched in for the doing of it. When the harvest is plenteous why should the labourers be few?

II. A further account of the Levites' work. What the work of the priests was we are told (v. 13): To sanctify the most holy things, to burn incense before the Lord, and to bless in his name; that work the Levites were not to meddle with, and yet they had work enough, and good work, according to that to which they were appointed, v. 4, 5. 1. Those of them that were to set forward the work of the house of God (v. 4) were therein to wait on the sons of Aaron (v. 28), were to do the drudgery-work (if any work for God is to be called drudgery) of the house of God, to keep the courts and chambers clean, set things in their places, and have them ready when there was occasion to use them. They were to prepare the show-bread which the priests were to set on the table, to provide the flour and cakes for the meat-offerings, that the priests might have every thing ready to their hands. 2. Those of them that were judges and officers had an eye particularly upon all measure and size, v. 29. The standards of all weights and measures were kept in the sanctuary; and the Levites had the care of them, to see that they were exact, and to try other weights and measures by them when they were appealed to. 3. The work of the singers was to thank and praise the Lord (v. 30), at the offering of the morning and evening sacrifices, and other oblations on the sabbaths, new moons, etc., v. 31. Moses appointed that they should blow with trumpets over their burnt offerings and other sacrifices, and on their solemn days, Num. 10:10. The sound of the trumpet was awful, and might be affecting to the worshippers, but was not articulate, nor such a reasonable service as this which David appointed, of singing psalms on those occasions. As the Jewish church grew up from its infancy, it grew more and more intelligent in its devotions, till it came at length, in the gospel, to put away childish things, 1 Co. 13:11; Gal. 4:3, 9. 4. The work of the porters (v. 5) was to keep the charge of the tabernacle and of the holy place, that none might come nigh but such as were allowed, and those no nearer than was allowed them, v. 32. They were likewise to keep the charge of the sons of Aaron, to be at their beck and go on their errands, who are yet called their brethren, to be a memorandum to the priests that, though they were advanced to a high station, yet they were hewn out of the same rock with common Levites, and therefore must not lord it over them, but in all instances treat them as brethren.