en_tn_lite_do_not_use/mrk/12/24.md

Is this not the reason you are mistaken ... power of God?

Jesus rebukes the Sadducees because they are mistaken about God's law. This may be written as a statement. Alternate translation: "You are mistaken because ... power of God." (See: rc://en/ta/man/translate/figs-rquestion)

you do not know the scriptures

This means that they do not understand what is written in the Old Testament scriptures.

the power of God

"how powerful God is"