# For this is he who was spoken of by Isaiah the prophet, saying

"For John is the one Isaiah the prophet spoke about when he said"

# The voice of one calling out in the wilderness

"The voice of one calling out in the wilderness is heard" or "They hear the sound of someone calling out in the wilderness"

# Make ready the way of the Lord

"Get the road ready for the Lord." Doing this represents being prepared to hear the Lord's message when he comes.