1 Chronicles 23:31
And to offer all burnt sacrifices unto the Lord in the sabbaths, in the new moons, and on the set feasts, by number, according to the order commanded unto them, continually before the Lord: (1 Chronicles 23:31)
R10 Isaiah 1:13  R12 Numbers 28:11  R11 Leviticus 23:2, Leviticus 23:4
Isaiah 1:13 Bring no more vain oblations; incense is an abomination unto me; the new moons and sabbaths, the calling of assemblies, I cannot away with; it is iniquity, even the solemn meeting. 2 I MC VC
Numbers 28:11 And in the beginnings of your months ye shall offer a burnt offering unto the Lord; two young bullocks, and one ram, seven lambs of the first year without spot; 10 I MC VC
Leviticus 23:2, 4
Leviticus 23:2 Speak unto the children of Israel, and say unto them, Concerning the feasts of the Lord, which ye shall proclaim to be holy convocations, even these are my feasts. 10 I MC VC
Leviticus 23:4 These are the feasts of the Lord, even holy convocations, which ye shall proclaim in their seasons. 10 I MC VC