Queries on Ephesians 5

Listen from:
13. Is it “everything that is manifested” Or “that which maketh everything manifest?”
14. What Old Testament scripture is used, and how?
19. Difference of “psalms, hymns, and spiritual songs?”
21. The best authorities have “fear of Christ: “what is gained spiritually?
23. What is the connection of “He is the Savior of the body?”