Here "took away" means the horn stopped the offering. Here "him" refers to God, the commander of the army. AT: "It stopped the people from making their regular burnt offering to him"
# the place of his sanctuary was polluted
This can be stated in active form. AT: "it defiled his sanctuary" (See: [[rc://en/ta/man/translate/figs-activepassive]])
# The horn will throw truth down to the ground
The horn ignoring truth and godliness is spoken of as if it will throw truth to the ground. AT: "The horn will reject the truth" (See: [[rc://en/ta/man/translate/figs-metaphor]])