Matthew Henry on 1 Chronicles 13:6-14

Let the sin of Uzza warn all to take heed of presumption, rashness, and irreverence, in dealing with holy things; and let none think that a good design will justify a bad action. Let the punishment of Uzza teach us not to dare to trifle with God in our approaches to him; yet let us, through Christ, come boldly to the throne of grace. If the gospel be to some a savour of death unto death, as the ark was to Uzza, yet let us receive it in the love of it, and it will be to us a savour of life unto life.