Numbers 28:14
And their drink offerings shall be half an hin of wine unto a bullock, and the third part of an hin unto a ram, and a fourth part of an hin unto a lamb: this is the burnt offering of every month throughout the months of the year. And their drink offerings shall be half an hin of wine unto a bullock, and the third part of an hin unto a ram, and a fourth part of an hin unto a lamb: this is the burnt offering of every month throughout the months of the year.
The prescribed measures of wine belonged to the sanctuary requirement for the offerings appointed for each new moon. These monthly offerings formed part of the regular system that included the daily service. Alongside that daily service stood the Sabbath offerings and the offerings appointed for the special feasts.