what are the three categories of spiritual gifts?
['celibacy (1 Corinthians 7:7)', 'hospitality (1 Peter 4:9–10)', 'intercession (Romans 8:26–27)', 'marriage (1 Corinthians 7:7)', '(effective) witnessing (Acts 1:8, 5:32, 26:22, 1 John 5:6)']