Adam Clarke on Mark 11:16

Should carry any vessel - Among the Jews the word כלי keli, vessel, had a vast latitude of meaning; it signified arms, Jer 21:4; Eze 9:1; clothes, Deu 22:5, and instruments of music, Psa 71:22. It is likely that the evangelist uses the Greek word σκευος in the same sense, and by it points out any of the things which were bought and sold in the temple.