The God of Abraham, Isaac, and Jacob is the only God in the universe. That is my statement of faith. I cannot prove the belief, but that does not make it any less true for my life.
For God to be Lord means that I belong to Him. Compare the image with Medieval England where there developed a hierarchy of lords. The list in descending order was (and is) king, prince, duke, marquess, earl, viscount, and baron. Baronets and knights did not receive the title of lord.
Each of the lords had commoners who belonged to them. They were not slaves and could choose to leave. Several barons also belonged to a viscount who had his own commoners to protect and receive taxes from. So, a commoner would call his baron—lord—and the baron would call his viscount—lord, and on up the chain.
We Christians have two Lords, Jesus and God. Notice that Jesus never put himself on the same level as God but bowed to Him as Lord.
It should be no surprise to read the passage in Luke because that is exactly how Jesus behaved. He acted as a commoner. If God chose to elevate him to a higher office, that was God’s decision. Most of Christianity accepts the Trinitarian belief that God has taken three forms, and I do as well. Still, while on earth, Jesus was a man who did not strive to be more than a man.
Nor should we. Every human is born common, even if we find ways to give one another exalted titles. When we go to sit at God’s banquet table, none of our earthly titles will mean anything. You may find yourself sitting between a former President and a street bum.
Jeremiah and Psalm 81 state the argument in the negative. By failing to live the life described by Jesus, anyone of us may end up outside looking in at God’s banquet.
Be righteous and do good.