'Joy' in the Bible

Sing for joy and be glad, O daughter of Zion; for behold I am coming and I will dwell in your midst,” declares the Lord.

“Thus says the Lord of hosts, ‘The fast of the fourth, the fast of the fifth, the fast of the seventh and the fast of the tenth months will become joy, gladness, and cheerful feasts for the house of Judah; so love truth and peace.’