The Biblical idea of duty may be the most sublime concept in all of Scripture. Rarely if ever does the modern man think in terms of duty. Our days, our lives are simply occupied with fulfilling the desires of our sinful hearts. The least mention of duty can cause offense among those content to live satiating their own flesh. Yet for the Christian we cannot merely dismiss the sense of duty. In fact, the Bible sets duty before us in the highest and loftiest sense of the word.
According to Webster's 1828 dictionary, duty is defined by 'that which a person owes to another, that which a person is bound, by any natural, moral or legal obligation, to pay or perform". A sense of duty is derived from a sense of debt. We owe a duty because we owe a debt. So while duty cannot be strictly defined as a character trait or attribute of the Christian, we might rightly state that it is our duty or obligation to exercise ourselves unto godliness and in the character of Christ.
Why? Why should the Christian feel a sense of duty towards God to live his or her life in accordance to His will? Because the Bible says this is the whole duty of man. We owe God. We owe Him our all. Everything we have, everything we are, belongs to Him. We are bound to the Lord and the true believer has an obligation to perform, to live according to the commandments of God. Does your life reflect your duty to God? Is how your living, your conduct, and your speech a reflection of keeping His commands? Robert E. Lee once captured the essence of this idea of duty when he said, "Do your duty, you can do no more, and you should do no less". Fear God, and keep His commandments for this is the whole duty of man. Amen.