New Living Translation
Blow the ram’s horn in Jerusalem! Announce a time of fasting; call the people together for a solemn meeting.

American Standard Version
Blow the trumpet in Zion, sanctify a fast, call a solemn assembly;

Berean Study Bible
Blow the ram’s horn in Zion, consecrate a fast, proclaim a sacred assembly.

Douay-Rheims Bible
Blow the trumpet in Sion, sanctify a fast, call a solemn assembly,

English Revised Version
Blow the trumpet in Zion, sanctify a fast, call a solemn assembly:

King James Bible
Blow the trumpet in Zion, sanctify a fast, call a solemn assembly:

World English Bible
Blow the trumpet in Zion! Sanctify a fast. Call a solemn assembly.

Young's Literal Translation
Blow ye a trumpet in Zion, Sanctify a fast -- proclaim a restraint.

Joel 2:15 Additional Translations ...