'New Moon' in the Bible

Bring no more vain offerings. Incense is an abomination to me; new moons, Sabbaths, and convocations: I can't bear with evil assemblies.

My soul hates your New Moons and your appointed feasts. They are a burden to me. I am weary of bearing them.

It shall happen, that from one new moon to another, and from one Sabbath to another, shall all flesh come to worship before me," says the LORD.