Deut 34:8

34:8 thirty days. The same period of mourning as for Aaron (Num. 20:29; cf. Gen. 50:3, 10; 2 Sam. 1:12). Ritual displays of mourning in the Old Testament included weeping, fasting, tearing of clothing, wearing sackcloth, and throwing dust on the head (Gen. 37:34, 35; Ps. 35:13; Lam. 2:10). Certain mourning practices were forbidden to Israel (14:1 note).