Matthew 3:3 note 2 (RcV)

Matthew 3:3
For this is he who was spoken of through Isaiah the prophet saying, "A voice of one crying in the wilderness, ²Prepare the way of the Lord; make straight His paths."

3² The way, similar to a street, and the paths, similar to lanes, are a portrait of man’s heart with all its parts. To repent unto the Lord with our whole being and with our whole heart and to let the Lord come in is to prepare the way of the Lord. To allow the Lord to further occupy every part of our heart, including the mind, the emotion, and the will, is to make straight the paths of the Lord. Hence, to prepare the way of the Lord and make His paths straight is to change our mind, to turn our mind toward the Lord and make our heart right, that through repentance every part and avenue of our heart may be straightened by the Lord for the kingdom of the heavens (Luke 1:16-17).