God shows His love for His people in many different ways. We often complain to him just like the isrealites thinking that we are doing nothing wrong and questioning God's love for us. However God reminds us of his constant Love for us from the beginning of creation all the way to our lives today. One of the many ways we see his Love for us in Malachai 1 is by his protection over His people. Furthermore, He challanges the Israelites and us today to not offer unworthy sacrafices as a way of trying to short change him of all that He deserves.