The commentaries highlight that the people's sin began with their attitude. They found God's service to be "a weariness" and treated it with contempt ("snuffed at it"). Scholars explain this isn't just about being tired, but about viewing worship as a burdensome chore rather than a privilege. Matthew Henry applies this to us: when we are cold, careless, or distracted in our worship, we are showing the same contempt. True worship must flow from love, not a sense of drudgery.