when Ezra had prayed. Note the change to the third person. This does not imply another authorship. Such changes are common. Compare Isaiah 6:5-8; Isaiah 7:3; Isaiah 37:6 with other passages. Also Jeremiah 20:1-6 with Ezra 10:7. and Jeremiah 21:1 with Jeremiah 28:1; Jeremiah 28:5.
God. Hebrew. Elohim. (with Art.). the [true] God. App-4.
Israel. Compare Ezra 1:5.Ezra 2:2; Ezra 2:59; Ezra 2:70; Ezra 6:21; Ezra 7:10; Ezra 7:13; Ezra 8:25; Ezra 9:1. See note on 1 Kings 12:17.
congregation. assembly. Assembled 24th Tisri. Compare Nehemiah 9:3.
children. little ones. Hebrew. yeled. Not the same word as in Ezra 10:7.
wept very sore. Hebrew "wept. great weeping". Figure of speech Polyptoton. See note on Genesis 26:28.