I am the (Lord-Master) thy (GOD-government); you shall have no other gods before Me, Exodus 20:1-3. The Spokesperson who gave the Ten Commandments; He is the Master, (The one whom we serve and obey), the King of kings. So CAN He "BE" worshiped in VAIN, Mark 7:7. One can serve only one master, Sin or the Father, Romans 6:16. He said that one should love thy Father with all their heart, soul, and mind, the first commandment, the second is to love their neighbor as thyself, Matthew 22:37-40.