2 Kings 4:23
And he said, Why will you go to him today? it is neither new moon, nor sabbath. And she said, It shall be well.
Numbers 10:10
Also in the day of your gladness, and in your solemn days, and in the beginnings of your months, you shall blow with the trumpets over your burnt offerings, and over the sacrifices of your peace offerings; that they may be to you for a memorial before your God: I am the LORD your God.
Numbers 28:11
And in the beginnings of your months you shall offer a burnt offering unto the LORD; two young bullocks, and one ram, seven lambs of the first year without spot;
1 Chronicles 23:31
And to offer all burnt sacrifices unto the LORD on the sabbaths, on the new moons, and on the set feasts, by number, according to that required of them, continually before the LORD:
Isaiah 1:13-15
Bring no more vain offerings; incense is an abomination unto me; the new moons and sabbaths, the calling of assemblies, I cannot endure; it is iniquity, even the solemn meeting.