Joseph Benson's Commentary of the Old and New Testaments - James 3:7-8
James 3:7-8. For every kind of beasts Πασα φυσις θηριων , every nature of wild beasts. The phrase signifies the strength and fierceness of wild beasts, the swiftness of birds, the poison of serpents, the exceeding great force of sea-monsters; is tamed Δαμαζεται , is subdued, or is capable of being subdued; by mankind Τη φυσει τη ανθρωπινη , by the human nature; every sort of these has been overcome by the art and ingenuity of man; so that they have been made subservient to his use... read more
Albert Barnes' Notes on the Whole Bible - James 3:7
For every kind of beasts - The apostle proceeds to state another thing showing the power of the tongue, the fact that it is ungovernable, and that there is no power of man to keep it under control. Everything else but this has been tamed. It is unnecessary to refine on the expressions used here, by attempting to prove that it is literally true that every species of beasts, and birds, and fishes has been tamed. The apostle is to be understood as speaking in a general and popular sense, showing... read more