Following are a number of back-translations of Luke 3:5:

• Noongar: “You must fill every valley. You must make low all hills and mountains. You must make straight all rooked paths. You must make smooth all rough paths.” (Source: Warda-Kwabba Luke-Ang)
• Uma: “The holes must be filled, The high parts and the bumpy places [lit, hilly] must be madelevel/the same. The curvy places [lit, elbow-y] be made straight, and the hollow places made flat.” (Source: Uma Back Translation)
• Yakan: “All valleys should be filled and all mountains and hills should be leveled, the crooked should be straightened, the bumpy way (lit. the hill-valley way) should be smoothed.” (Source: Yakan Back Translation)
• Western Bukidnon Manobo: “Fill in the low places, and if the way is hilly, make it flat. If the way is winding, straighten it out. And if there are bumps, you must level them off.” (Source: Western Bukidnon Manobo Back Translation)
• Kankanaey: “What you will do is, level-out the mountains and hills. If there are also very-winding-places, make-them-straight. The potholes as well, fill them in” (Source: Kankanaey Back Translation)
• Tagbanwa: “It’s necessary that you (pl.) fill in the hollows and level each hill and mountain. Make-direct the path which is crooked and flatten the uneven.” (Source: Tagbanwa Back Translation)

For the Old Testament quote, see Isaiah 40:3 – Isaiah 40:5.