Following are a number of back-translations of Mark 6:2:

• Uma: “On the worship day, he went to the prayer house to teach people. There were many people there. When they heard Yesus teaching, they were surprised, they said: ‘Who taught him all that? What [kind of] skill / wisdom does he possess? How is it that he can do surprising things?” (Source: Uma Back Translation)
• Yakan: “So-then when it was Saturday, the day of-no-work for the Yahudi, he began again to preach/teach in the prayer-house. Many who listened to him wondered. They said, ‘Uy, where did he get his learning from? And what wisdom/knowledge has been given to him? How can/did he do those powerful deeds?” (Source: Yakan Back Translation)
• Western Bukidnon Manobo: “On Saturday which is the revered Day of Rest Jesus taught the people inside the church of the Jews. There were many people gathered there, and they were amazed as they listened to Jesus.” (Source: Western Bukidnon Manobo Back Translation)
• Kankanaey: “When the day for-resting of the Jews arrived which was Saturday, Jesus went to teach in the synagogue. And many were amazed when they heard (him) and they said, ‘Where did this-one get his thoughts? Where did he get his wisdom? How moreover does he do miracles?” (Source: Kankanaey Back Translation)
• Tagbanwa: “When the Day of Rest came, Jesus taught in their worship-place. The crowd which heard his teaching were amazed. They were saying, ‘Where did he get all that? What is this wisdom/understanding which has been given/graced to him? How is it he can do these amazing things?” (Source: Tagbanwa Back Translation)