Malachi in a nutshell: Worshipping God is not about doing the least you can do to get by, but about "keeping it 100," wholeheartedly. The tone of this book is not jovial but angry. Malachi reprimanded the Israelites for disregarding God's laws, and bringing damaged crops and sacrifices. They also failed to give the tithe which supported the priest and levites. They acted as if they were innocent and/or totally oblivious to their own disobedience and wickedness. Malachi stated, "Ever since the days of your ancestors, you have scorned my decrees and failed to obey them. Now, return to me and I will return to you, says the LORD of Heaven's Armies. But you ask, 'How can we return when we have never gone astray? '"
The Isrealites went astray and we have, in many respects, gone astray today in our giving, yes, but also in our misapplication of Malachi 3:10, "Bring all the tithes into the storehouse so there will be food in my Temple. If you do, says the Lord of Heaven's Armies, I will open the windows of heaven for you. I will pour out a blessing so great you won't have room enough to take it in! Try it! Put me to the test!" This text is famously presented as a "give-to-get" text. We ought give as an act of worship, because it is the right thing to do. Let us repent and turn back to God in every area of our lives, also in the application of God's word.
The follow link shares more on how Malachi 3:10 is famously misapplied.