Amos 4:5
“And offer a sacrifice of thanksgiving with leaven, and proclaim and publish the free offerings: for this liketh you, O ye children of Israel, saith the Lord God.”
And ye shall go out at the breaches, every cow at that which is before her; and ye shall cast them into the palace, saith the Lord.
Come to Beth–el, and transgress; at Gilgal multiply transgression; and bring your sacrifices every morning, and your tithes after three years:
And offer a sacrifice of thanksgiving with leaven, and proclaim and publish the free offerings: for this liketh you, O ye children of Israel, saith the Lord God.
And I also have given you cleanness of teeth in all your cities, and want of bread in all your places: yet have ye not returned unto me, saith the Lord.
And also I have withholden the rain from you, when there were yet three months to the harvest: and I caused it to rain upon one city, and caused it not to rain upon another city: one piece was rained upon, and the piece whereupon it rained not withered.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Related Verses
“These are the feasts of the Lord, even holy convocations, which ye shall proclaim in their seasons.”
“And if ye offer a sacrifice of peace offerings unto the Lord, ye shall offer it at your own will.”
“And when ye will offer a sacrifice of thanksgiving unto the Lord, offer it at your own will.”
“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.”
“And the flesh of the sacrifice of his peace offerings for thanksgiving shall be eaten the same day that it is offered; he shall not leave any of it until the morning.”