Ezra 8:20

20 And from the temple servants, whom David and [his] officials had set up to serve the Levites, two hundred and twenty [in total]. All of them were registered by name.

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 With the good hand of our God before us, they brought us a man of understanding from the sons of Mahli, son of Levi, son of Israel--Sherebiah and his sons and brothers, eighteen [in total].

19 Also Hashabiah and with him Jeshaiah, the sons of Merari, with his brothers and their sons, twenty [in total].

20 And from the temple servants, whom David and [his] officials had set up to serve the Levites, two hundred and twenty [in total]. All of them were registered by name.

21 I proclaimed a fast there at the river Ahava to humble ourselves before our God in order to seek from him a safe journey for us, our children, and our possessions.

22 For I was ashamed to ask the king for troops and horses to protect us from enemies on the way because we said to the king, "the hand of our God is favorable to all who seek him, but his strength and anger are against all who forsake them."