Commentators explain that God's call to His scattered people is likened to a lion's roar. This represents the powerful, majestic, and authoritative voice of Christ through the gospel. This call is not a gentle whisper but a commanding summons that reaches far and wide, compelling a response. While some scholars, like Calvin, see the roar as a display of power against enemies, most view it as God's awe-inspiring call to repentance and restoration.