OT-PROPHET-MINOR.filter - rsv solemn:

rsv@Joel:1:14 @ Sanctify a fast, call a solemn assembly. Gather the elders and all the inhabitants of the land to the house of the LORD your God; and cry to the LORD.

rsv@Joel:2:15 @ Blow the trumpet in Zion; sanctify a fast; call a solemn assembly;

rsv@Amos:5:21 @ "I hate, I despise your feasts, and I take no delight in your solemn assemblies.