To call Jesus Lord, does not make one a born again believer. Jesus clearly taught that calling Him Lord was not the same thing as relating to Him as a servant would to his master (Mt. 7:21-22; 25:11). The Bible refers to the Lord in the Old Testament by calling Him the "LORD of hosts" nearly four hundred times. The word "host" in the Hebrew צָבָא (tsaba'), and in the Greek στρατιά (stratia), meaning "a vast army of angels" (1 Kgs. 22:19; Lk. 2:8-15).
He is called the LORD of all the earth six times, and the LORD of heaven once (Josh. 3:11, 13; Ps. 97:5; Mic. 4:13; Zech. 4:15; 6:5; Dan. 5:23). He is called "Lord of the Harvest" (Mt. 9:58); "Lord of the Sabaoth" (Rom. 9:29; Jam. 5:4), "Lord of Glory" (1 Cor. 2:8; Jam. 2:1), and "Lord of peace" (2 Thes. 3:16). And finally, He is called "Lord of lords" five times (Deut. 10:17; Ps. 136:3; 1 Tim. 6:15; Rev. 17:14; 19:16).
The ultimate question is, is Jesus your Lord? Does He rule over your decisions, relationships, habits, conversations, and actions? Do you ask yourself, "What Would Jesus Do?" Do you reverence Him, and do you see yourself as His servant? The answer to these questions can be seen in how you treat your fellow human beings! As Lord, He declares we are to love others, and in so doing, we are, in turn, loving Him (Gal. 5:13-14).
You can fool others; you can fool yourself; but you cannot fool the Lord God Almighty!