The book of Malachi calls us to evaluate and examine the condition of our hearts towards God. While it is a book addressed specifically to the priests and Levites in Israel, it applies to every believer today as we are called to be a kingdom of priests to God.
This book exhorts us to examine our heart attitudes when we bring our worship and offerings to God. Are we truly engaging with Him or simply going through the motions with cold and dull hearts?