Charles Ellicott Commentary Ezekiel 31:4

"The waters nourished it, the deep made it to grow: the rivers thereof ran round about its plantation; and it sent out its channels unto all the trees of the field." — Ezekiel 31:4 (ASV)

His plants. —Should rather be, his plantation.

Sent out her little rivers.— The thought is that the various surrounding and subordinate nations were nourished from the great stream of prosperity which swelled the power and wealth of Assyria.