the Anniversary Feasts: Called: Solemn Feasts
Source: TTT
2 Chronicles 8:13
He observed the daily requirement for offerings according to the commandment of Moses for Sabbaths, New Moons, and the three annual appointed feasts—the Feast of Unleavened Bread, the Feast of Weeks, and the Feast of Tabernacles.
Lamentations 1:4
The roads to Zion mourn, because no one comes to her appointed feasts. All her gates are deserted; her priests groan, her maidens grieve, and she herself is bitter with anguish.