Yehezkiel 39:22

39:22 Then the house of Israel will know that I am the Lord their God, from that day forward.

Yehezkiel 44:20

44:20 “‘They must not shave their heads ¹  nor let their hair grow long; ²  they must only trim their heads.

[44:20]  ¹ sn The shaving of the head was associated with mourning (Ezek 7:18).

[44:20]  ² sn Letting the hair grow was associated with the taking of a vow (Num 6:5; Acts 21:23-26).