1 Chronicles 23:31

and for all the offering of ascending-sacrifices unto Yahweh, on the sabbaths, and on the new moons, and on the set feasts, - by number, according to the manner prescribed for them continually, before Yahweh; -

Isaiah 1:13-14

Ye shall not again bring in an empty, present, Incense, an abomination, is that unto me! New moon, and sabbath calling an assembly - I cannot endure, iniquity and sacred festival!

Leviticus 23:24

Speak unto the sons of Israel, saying: - In the seventh month on the first of the month, shall there be unto you a sacred rest, a trumpet-blowing commemoration a holy convocation:

Leviticus 23:39

Surely, on the fifteenth day of the seventh month, when ye have gathered in the yield of the land, shall ye celebrate the festival of Yahweh seven days, - on the first day, a sacred rest, and, on the eighth day, a sacred rest.

Numbers 10:10

And in your day of rejoicing and in your appointed seasons and in the beginnings of your months, then shall ye blow with the trumpets, over your ascending-sacrifices, and over your peace-offerings, - so shall they be unto you for a memorial before your God. I - Yahweh, am your God.

Psalm 81:1-4

Shout ye for joy, unto God our strength, Sound the note of triumph, to the God of Jacob;

Treasury of Scripture Knowledge

Summary

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:

General references

Bible References

In the sabbaths

Leviticus 23:24
Speak unto the sons of Israel, saying: - In the seventh month on the first of the month, shall there be unto you a sacred rest, a trumpet-blowing commemoration a holy convocation:
Numbers 10:10
And in your day of rejoicing and in your appointed seasons and in the beginnings of your months, then shall ye blow with the trumpets, over your ascending-sacrifices, and over your peace-offerings, - so shall they be unto you for a memorial before your God. I - Yahweh, am your God.
Psalm 81:1
Shout ye for joy, unto God our strength, Sound the note of triumph, to the God of Jacob;
Isaiah 1:13
Ye shall not again bring in an empty, present, Incense, an abomination, is that unto me! New moon, and sabbath calling an assembly - I cannot endure, iniquity and sacred festival!

General references

Ezekiel 44:14
Yet will I make them keepers of the charge of the house, - As to all the labour thereof, and As to all which shall be done therein.