What is the context of Psalms 40:7-9?

• God Sustains His Servant. (Psalms 40:1-17 true)
• Psalm 40 .[ a .] .( A .) (Psalms 40:1-17 true)
• Prayer for Help and Praise to God (Psalms 40:1-17 true)
• Faith Persevering in Trial (Psalms 40:1-17 true)
• My Help and My Deliverer (Psalms 40:1-17 true)
• Thanksgiving and a Cry for Help (Psalms 40:1-17 true)
• God’s Faithfulness and Deliverance (Psalms 40:1-17 true)