15 It was given to him to give breath to it, to the image of the beast, that the image of the beast should both speak, and cause as many as wouldn’t worship the image of the beast to be killed.
the image of the beast would even speak – the false prophet deceived the people of the earth to believe that the three person “Trinity god” was speaking to them.
and cause as many as did not worship the image of the beast to be killed – the Trinity is the first doctrine established by the threat of capital punishment. Constantine gave orders that anyone protecting the writings of Arius would be killed. The next three centuries would be filled with attacks on Arian believing states, by Nicene Creed believers, who thought the “Trinity god” was helping them to win.
Muhammad easily overthrew the Christian Arab states of Turkey, Syria and Egypt from 600 to 700; rebuking them for forsaking the straight path of their forefathers, by worshipping a three person god. And from 1096 to 1487, the Crusades attempted to regain the Holy land from Islam, believing that their three person god would help them win.
In Dan 11:36, and 2 Thess 2:4, we read about the Beast, “who opposes and exalts himself above every so-called god or object of worship , so that he takes his seat in the temple of God.” Daniel told us that the Beast would act against the strongest of fortresses, with the help of a god that his fathers (the Apostles) did not know (Dan 11:38, and Dan 11:39). This described the Popes’ failed Crusades against Islam from 1096 to 1291. The Crusades encountered the strongest fortresses in the world.
the armies of the First Crusade on their way to Jerusalem between 1096 and 1099 encountered the most advanced fortifications of the time: Constantinople (now Istanbul), Nicaea (now Iznik), Kaisariyya (now Kayseri), Mar‘ash (now Kahraman Maraş), Tarsus, ‘Ayn Zarbā (now Anavarza), Rāwandān (now Ravanda Kalesi), Tall Bāshir (now Tilbaşar Kalesi), Edessa (now Şanlı Urfa), Antioch, Ma‘arrat al-Nu‘mān, Ṭarṭūs, ‘Arqā, Tripoli, Tyre, Acre, and finally Jerusalem. All of them were surrounded by double, if not triple walls, protected by ample moats. Their gates were commonly entered through indirect access ways. [1. crusader-castles.com]
For 1200 years, opposition to the Trinity belief would be regarded as heresy, and treason, worthy of capital punishment. During the Reformation, the Protestant Reformer Calvin rallied for the execution of Michael Servetus, a Spanish theologian. He was burned alive on his books because he opposed the Trinity.