# It is written

This is a quotation from Isaiah. This can be stated in active form. Alternate translation: "The scriptures say" or "A prophet wrote these words in the scriptures" (See: [[rc://en/ta/man/jit/figs-activepassive]])

# My house

The word "My" refers to God and "house" refers to the temple.

# house of prayer

"a place where people pray to me"

# a den of robbers

Jesus speaks of the temple as if it were a place where thieves come together. Alternate translation: "a place where thieves hide" (See: [[rc://en/ta/man/jit/figs-metaphor]])