Joel 2:15

15 Blow the trumpet in Zion, sanctify a fast, call a solemn assembly;

Joel 2:15 Meaning and Commentary

Joel 2:15

Blow the trumpet in Zion
For the calling of the people together to religious duties, which was one use of the silver trumpets made for and blows by the priests, ( Numbers 10:2 Numbers 10:3 Numbers 10:8 Numbers 10:10 ) ; sanctify a fast, call a solemn assembly; (See Gill on Joel 1:14).

Joel 2:15 In-Context

13 and rend your heart, and not your garments, and turn unto Jehovah your God; for he is gracious and merciful, slow to anger, and abundant in lovingkindness, and repenteth him of the evil.

14 Who knoweth whether he will not turn and repent, and leave a blessing behind him, even a meal-offering and a drink-offering unto Jehovah your God?

15 Blow the trumpet in Zion, sanctify a fast, call a solemn assembly;

16 gather the people, sanctify the assembly, assemble the old men, gather the children, and those that suck the breasts; let the bridegroom go forth from his chamber, and the bride out of her closet.

17 Let the priests, the ministers of Jehovah, weep between the porch and the altar, and let them say, Spare thy people, O Jehovah, and give not thy heritage to reproach, that the nations should rule over them: wherefore should they say among the peoples, Where is their God?