Ezra 8:20

20 They also brought 220 of the temple servants, all designated by name. David and the officials had appointed them to assist the Levites.

Ezra 8:20 Meaning and Commentary

Ezra 8:20

Also of the Nethinims, whom David and the princes had
appointed for the service of the Levites
To wait upon them, and minister to them, as they did to the priests; some think those were the same with the Gibeonites, whom Joshua gave to the service of the sanctuary, and David confirmed; but others are of opinion these were different from them, and an addition to them:

two hundred and twenty Nethinims: all of them were expressed by
name;
in the history that Iddo sent of them to Ezra; and so the names of the Levites, though not here expressed, only the names of those they came with.

Ezra 8:20 In-Context

18 And since the gracious hand of our God was upon us, they brought us Sherebiah—a man of insight from the descendants of Mahli son of Levi, the son of Israel—along with his sons and brothers, 18 men;

19 also Hashabiah, together with Jeshaiah, from the descendants of Merari, and his brothers and their sons, 20 men.

20 They also brought 220 of the temple servants, all designated by name. David and the officials had appointed them to assist the Levites.

21 And there by the Ahava Canal I proclaimed a fast, so that we might humble ourselves before our God and ask Him for a safe journey for us and our children, with all our possessions.

22 For I was ashamed to ask the king for an escort of soldiers and horsemen to protect us from our enemies on the road, since we had told him, “The hand of our God is gracious to all who seek Him, but His great anger is against all who forsake Him.”