Exegetical and Hermeneutical Commentary of Ezra 10:37
Mattaniah, Mattenai, and Jaasau,
37. and Jaasau ] R.V. and Jaasu. Marg. ‘Another reading is, Jaasai ’. The LXX. clearly had ‘Jaasu’, which they mistook for a verb and rendered ‘and they did or made’ ( ) regardless of the lack of meaning. The C’thib has ‘Jaasu’: the K’ri ‘Jaasai’.
Fuente: The Cambridge Bible for Schools and Colleges
[See comments on Ezr 10:19].