Kings IV 10:20

20 And Ju said, Sanctify a solemn festival to Baal, and they made a proclamation.

Kings IV 10:20 In-Context

18 And Ju gathered all the people, and said to them, Achaab served Baal a little; Ju shall serve him much.
19 Now then do all the prophets of Baal call all his servants and his priests to me; let not a man be wanting: for I have a great sacrifice to Baal; every one who shall be missing shall die. But Ju did it in subtilty, that he might destroy the servants of Baal.
20 And Ju said, Sanctify a solemn festival to Baal, and they made a proclamation.
21 And Ju sent throughout all Israel, saying, Now then let all servants, and all his priests, and all his prophets , let none be lacking: for I am going to offer a great sacrifice; whosoever shall be missing, shall not live. So all the servants of Baal came, and all his priests, and all his prophets: there was not one left who came not. And they entered into the house of Baal; and the house of Baal was filled from one end to the other.
22 And he said to the man who was over the house of the wardrobe, Bring forth a robe for all the servants of Baal. And the keeper of the robes brought forth to them.

The Brenton translation of the Septuagint is in the public domain.