Isaiah 1:17 (KJV)

When ye come to appear before me, who hath required this at your hand, to tread my courts?

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.

Your new moons and your appointed feasts my soul hateth: they are a trouble unto me; I am weary to bear them.

And when ye spread forth your hands, I will hide mine eyes from you: yea, when ye make many prayers, I will not hear: your hands are full of blood.

Wash you, make you clean; put away the evil of your doings from before mine eyes; cease to do evil;

Come now, and let us reason together, saith the LORD: though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool.

If ye be willing and obedient, ye shall eat the good of the land:

But if ye refuse and rebel, ye shall be devoured with the sword: for the mouth of the LORD hath spoken it.

How is the faithful city become an harlot! it was full of judgment; righteousness lodged in it; but now murderers.

Thy silver is become dross, thy wine mixed with water: