Following are a number of back-translations as well as a sample translation for translators of Isaiah 66:20:

• Kupsabiny: “They shall woo all your people from the countries to come to me to become a thing that is given to me. They shall bring those people with horses, donkeys, camel and chariots coming to my mountain where I am honored in Jerusalem doing like when the people of Israel bring food to offer as gifts in the house of God with/through holy utensils.” (Source: Kupsabiny Back Translation)
• Newari: “And from all the nations they will bring all your elder and your own people, carried [on] horses, [in] chariots, [and] on mules [and] camels to my holy mountain, Jerusalem, as an offering for the LORD." The LORD has spoken. "They will bring these [offerings] [just] like the descendants of Israel would put their grain offering in a clean vessel and bring it to the temple of the LORD.” (Source: Newari Back Translation)
• Hiligaynon: “And they will-bring back from the nations all your (plur.) fellowmen, riding on the horses, mules and camels, and on the chariots and carts. They will-bring them to my holy mountain in Jerusalem as an offering to me, like what the Israelinhon are-doing that offer in my temple gift offerings that have-been-put-inside a clean container.” (Source: Hiligaynon Back Translation)
• English: “Then they will bring back here your relatives who have been exiled/forced to go to other countries, to be like an offering to me. They will come on horses, in chariots, on mules, and on camels. They will come to Zion, my sacred hill in Jerusalem. That will be like the offerings that my Israeli people used to bring in the correct manner to the temple.” (Source: Translation for Translators)