A.T. Robertson Commentary Mark 15:24

"And they crucify him, and part his garments among them, casting lots upon them, what each should take." — Mark 15:24 (ASV)

What each should take (τις τ αρη). Only in Mark. Note double interrogative, Who What? The verb αρη is first aorist active deliberative subjunctive retained in the indirect question. The details in Mr 15:24-32 are followed closely by Mt 27:35-44. See there for discussion of details.