All the fowls of the heavens made their nests in his boughs,.... People from all parts of the world, under the whole heavens, flocked to his dominions, and settled themselves in one province or another; promising themselves protection, prosperity, and peace under his government:and under his branches did all the beasts of the field bring forth their young; even people of a more savage disposition, being either conquered by him, and placed in his provinces; or coming thither of their own accord, took up their residence there, built houses, planted vineyards, married wives, begat children, and settled their families there:and under his shadow dwelt all great nations; under his protection, care, and government, many large kingdoms and states were; yea, all were either subject to him, or sought to be his friends and allies: this explains the above figurative expressions.
The Targum is,"by his army he subdued all the strong towers; and under his governors he subjected all the provinces of the earth; and in the shadow of his kingdom dwelt all the numerous people.'