John the Baptist fulfilled Isaiah 40:3 by preaching repentance in the wilderness and preparing Israel for the Messiah.
How Did John the Baptist Fulfill Isaiah’s Prophecy in Matthew 3:3?
What Is the Voice of One Calling in the Wilderness (Isaiah 40:3; John 1:23)?
The “voice in the wilderness” is John the Baptist, fulfilling Isaiah 40:3 by calling Israel to repentance to prepare for Jehovah’s Messiah.
