Nehemiah 8:10
“Then he said unto them, Go your way, eat the fat, and drink the sweet, and send portions unto them for whom nothing is prepared: for this day is holy unto our Lord: neither be ye sorry; for the joy of the Lord is your strength.”
So they read in the book in the law of God distinctly, and gave the sense, and caused them to understand the reading.
And Nehemiah, which is the Tirshatha, and Ezra the priest the scribe, and the Levites that taught the people, said unto all the people, This day is holy unto the Lord your God; mourn not, nor weep. For all the people wept, when they heard the words of the law.
Then he said unto them, Go your way, eat the fat, and drink the sweet, and send portions unto them for whom nothing is prepared: for this day is holy unto our Lord: neither be ye sorry; for the joy of the Lord is your strength.
So the Levites stilled all the people, saying, Hold your peace, for the day is holy; neither be ye grieved.
And all the people went their way to eat, and to drink, and to send portions, and to make great mirth, because they had understood the words that were declared unto them.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“The Lord is my strength and my shield; my heart trusted in him, and I am helped: therefore my heart greatly rejoiceth; and with my song will I praise him.”
“A merry heart doeth good like a medicine: but a broken spirit drieth the bones.”
“For this thing I besought the Lord thrice, that it might depart from me.”
“Go thy way, eat thy bread with joy, and drink thy wine with a merry heart; for God now accepteth thy works.”
“And in that day thou shalt say, O Lord, I will praise thee: though thou wast angry with me, thine anger is turned away, and thou comfortedst me.”