It is implied that they are taking the ark to Jerusalem. Alternate translation: "to take to Jerusalem the ark of God" (See: [[rc://en/ta/man/translate/figs-explicit]])
This can be stated in active form. Possible meanings are 1) the idiom "called by ... name" refers to a person owning the thing. Alternate translation: "which belongs to Yahweh" or 2) the ark has Yahweh's name written on it. Alternate translation: "which bears Yahweh's name" (See: [[rc://en/ta/man/translate/figs-idiom]])
You may need to make explicit that the cherubim are those on the lid of the ark of the covenant. The biblical writers often spoke of the ark of the covenant as if it were Yahweh's footstool upon which he rested his feet as he sat on his throne in heaven above. Alternate translation: "who sits on his throne above the cherubim on the ark of the covenant" (See: [[rc://en/ta/man/translate/figs-explicit]])