Ezra 4:20

20 I find that they've had their share of strong kings who have taken over beyond the Euphrates and exacted taxes, tribute, and duty.

Ezra 4:20 Meaning and Commentary

Ezra 4:20

There have been mighty kings also over Jerusalem, which have
ruled over all countries beyond the river
As David and Solomon; and the account of these they had in their records, see ( 2 Samuel 8:1 ) ( 1 Kings 4:21 1 Kings 4:24 )

and toll, tribute, and custom, was paid unto them;
as appears from the places referred to; and this served to strengthen the insinuation made to the king, that if these people were suffered to go on building, he would lose his tribute and taxes in those parts.

Ezra 4:20 In-Context

18 The letter that you sent has been translated and read to me.

19 I gave orders to search the records, and sure enough it turns out that this city has revolted against kings time and again - rebellion is an old story there.

20 I find that they've had their share of strong kings who have taken over beyond the Euphrates and exacted taxes, tribute, and duty.

21 So do this: Order these men to stop work immediately - not a lick of rebuilding in that city unless I order it.

22 Act quickly and firmly; they've done enough damage to kings!