What is the context of 1 Corinthians 1:8-9?

• You are Rich (1 Corinthians 1:4-9 true)
• Paul Gives Thanks to God (1 Corinthians 1:4-9 true)
• Spiritual Gifts at Corinth (1 Corinthians 1:4-9 true)
• Thanksgiving for the Corinthian Believers (1 Corinthians 1:4-9 true)
• Thanksgiving (1 Corinthians 1:4-9 true)
• Appeal to Unity (1 Corinthians 1:1-17 true)