Career
He joined the Jesuits and was librarian of the Pontifical Biblical Institute in Rome. Leaving that position, he joined the diocesan clergy. Costa was born in Manresa.
During the Spanish Civil War, he was a senior official of the government"s Propaganda Commission.
In exile he worked a popular ministry. He died in Toulouse. He published the Catalans (1944) which advocated debate and elections for future Catalan national reconstruction.