'New Moon' in the Bible

Observe, I am about to build a house for the Name of the Lord my God, dedicated to Him, to burn fragrant incense [of sweet spices] before Him, to set out the showbread continually, and to offer burnt offerings morning and evening, on Sabbaths, New Moons, and on the festivals of the Lord our God, as ordained forever in Israel.

a certain number every day, offering them up as Moses commanded for the Sabbaths, the New Moons, and the three annual feasts—the Feast of Unleavened Bread, the Feast of Weeks, and the Feast of Booths (Tabernacles).

Hezekiah also appointed the king’s [personal] portion of his goods: for the morning and evening burnt offerings, and the burnt offerings for the Sabbaths and for the New Moons and for the appointed feasts, as it is written in the Law of the Lord.