Date

Change Bible refs to NASB; use Bible Englishman's concordance for list

explain OT Hebrew def of thanks

1 Chronicles 16:8 - "Give thanks to the Lord, call upon His name; Make His deeds known among the peoples."  (Psalm 105:1)

1 Chronicles 16:34 - "Give thanks to the Lord, for he is good; his love endures forever."  (Psalm 136:1)

Give NT Greek def of thanks

1 Thessalonians 5:18 - "In everything give thanks; for this is the will of God for you in Christ Jesus."
add note about everything being the whole (Ref. x)

References
1.
2.
3.