Whenever I hear anyone arguing for slavery, I feel a strong impulse to see it tried on him personally.
God is your Creator, not your concierge; your Saviour, not your slave. He is God, not a genie. you exist for him, not vice-versa.
...you were redeemed [bought out of slavery and set free]... with the precious blood of Christ... ' (1 Peter 1:18-19)