Why is being unthankful a sign of a carnal nature?

The unthankfulness present in the human condition is a direct result of our fallen nature. 2 Timothy 3:2 describes people in the last days as 'unthankful' alongside other sinful behaviors. This attitude signifies a refusal to recognize God's provision and grace in our lives. In contrast, a heart transformed by the Holy Spirit displays gratitude, acknowledging that all good gifts come from God (James 1:17). Acknowledging our blessings fosters humility and a spirit of worship, essential characteristics of a believer in Christ.