Amos 4

“Come to Bethel and transgress,
At Gilgal multiply transgression;
Bring your sacrifices every morning,
Your tithes every three days.
5 Offer a sacrifice of thanksgiving with leaven,
Proclaim and announce the freewill offerings;
For this you love,
You children of Israel!”
Says the Lord God. vv.4-5

Read chapter 4
Irony.  Jesus uses it as we see in the four gospels, so also we see it in the Old Testament.  Irony is to use words to convey a meaning that is opposite of it's literal meaning.  Amos is speaking to the women of Israel for their crudeness.  He calls them cows in verse one, which at first made me laugh although it's not like calling them fat as someone would make fun of someone this way today.  Calling them a cow of Bashan were rich, big, headstrong animals.  These women were leading astray their husbands by how they obliterated the laws of God.  They would go openly sin and sacrifice the next day to make up for, ask for forgiveness later way of thinking.  Tithes were to be every three years according to the law (Deut. 26:12), than every three days as says here.  Leven bread was not to be consumed on the alter either as God says with irony to go ahead and do that.  People will rather give lavish in sacrifices and gifts, than change their heart toward the Lord.
Do you give lavishly or sacrifice in order to try to make up for sins?  Don't be a cow of Bashan, be a man or woman after God's heart.