4 The first was like a lion, and had eagle’s wings: I saw until the wings of it were plucked, and it was lifted up from the earth, and made to stand on two feet as a man; and a man’s heart was given to it.
like a lion – this is Babylon. Nebuchadnezzar is compared to a lion in Jer 49:19.
and had eagle’s wings – meaning, the Lion was very fast; Nebuchadnezzar’s “horses are swifter than eagles” (Jer 4:13).
its wings were plucked off -Babylon, in the last part of its rule it, became less aggressive.
a man’s heart was given to it – the impact on Nebuchadnezzar, after he acknowledged God, in Dan 4:34. See Dan 4:16, “let his heart be changed from that of a man, let him be given the heart of a beast.”