Albert Barnes Commentary Ezra 1:9

"And this is the number of them: thirty platters of gold, a thousand platters of silver, nine and twenty knives," — Ezra 1:9 (ASV)

Chargers - The word in the original so translated occurs only in this passage. Its meaning is doubtful. Some derive it from a Hebrew root, “to hollow out,” and translate “cup” or “vessel.”

Knives - This is another doubtful word, only used here. The etymology points to some use of basket-work.