The law, when infused with the compelling love and gracious authority of our Redeemer, and when approached with thankfulness to Christ who ransomed us—this moral motive—still binds us to obedience. Not only because of the content of its commands, but also because of the authority of the Lawgiver.https://www.monergism.com/modest-survey-secrets-antinomianism-ebook
If we are ungrateful, we violate the first commandment because we are not keeping God, who is rich in mercy and goodness, before our eyes.How does God\'s Law apply to me?, 35
We often complain of our losses; but the expression is rather improper. Strictly speaking, we can lose nothing, because we have no real property in anything. Our earthly comforts are all lent to us by our good and gracious God; and when recalled, we ought to return and resign them with thankfulness—to Him who has let them remain so long in our hands! But, as I said above, I do not mean to enlarge in this strain.
the essence of sin- that we don't "give thanks"? Is that such a big deal? Yes, it is. Think about plagiarism for a moment. Why is plagiarism taken so seriously? It is claiming that you came up with an idea yourself when you did not. It is not acknowledging dependence, that you got the idea from someone else. Plagiarism is a refusal to give thanks and give credit and is, therefore, a form of theft... Cosmic ingratitude is living in the illusion that you are spiritually self-sufficient.Prayer, 196