OT-PROPHET.filter - nkjv fasting:

nkjv@Jeremiah:36:6 @ You go, therefore, and read from the scroll which you have written at my instruction, the words of the LORD, in the hearing of the people in the LORD's house on the day of fasting. And you shall also read them in the hearing of all Judah who come from their cities.

nkjv@Daniel:6:18 @ Now the king went to his palace and spent the night fasting; and no musicians were brought before him. Also his sleep went from him.

nkjv@Daniel:9:3 @ Then I set my face toward the Lord God to make request by prayer and supplications, with fasting, sackcloth, and ashes.