A federal judge on Wednesday ruled to temporarily block a new law that would require Texas public schools to post the Ten Commandments in classrooms.

U.S. District Judge Fred Biery rules the law, set to take effect Sept. 1, is unconstitutional, and allowed lawsuits opposing it to proceed.

Ken Paxton, the attorney general of Texas, announced Monday that he is "instructing" independent public school districts statewide to follow a state law that requires every classroom to display the Ten Commandments, starting Sept. 1—setting up what is likely to be a controversial start to the new academic year.