'Beginnings' in the Bible

Also in the day of your gladness, and in your set feasts, and in the beginnings of your months, ye shall blow the trumpets over your burnt-offerings, and over the sacrifices of your peace-offerings; and they shall be to you for a memorial before your God: I am Jehovah your God.

And in the beginnings of your months ye shall offer a burnt-offering unto Jehovah: two young bullocks, and one ram, seven he-lambs a year old without blemish;