Luke 2:1
Caesar Augustus (Luke 2:1), born Gaius Octavius (the great-nephew of Julius Caesar), became Augustus ("holy" or "revered") in 27 B.C. and ruled until A.D. 14, when he was succeeded by Tiberius (Luke 3:1). Hughes' states:
It was under Augustus' rule that decisive strides were taken toward making the Caesars gods. In fact, at about the same time Luke was writing these words, some of the Greek cities in Asia Minor adopted Caesar's birthday, September 23, as the first day of the New Year, hailing him as "savior." An inscription at Halicarnassus (birthplace of the famous Herodotus) even called him "savior of the whole world."
Augustus issued a decree, an imperial edict (cf. Acts 17:7), that had implications for the entire Roman world. Records do show that Augustus sought to reorganize the financial policies and procedures of the empire. Luke seems to be referring to an administrative direction from the emperor.
Quirinius was the governor of Syria (Luke 2:2) when a census was carried out in A.D. 6. He also was active in that area from 10-7 B.C. It seems to have been the custom to conduct a census at intervals of 14 years, so Quirinius would have been in the area at the time about which Luke wrote. People returned to their ancestral homes for registration (Luke 2:3). Stein says, "Like Nebuchadnezzar and Cyrus, Caesar Augustus is seen as a divine agent bringing about God's purpose and plan. In mentioning this Roman emperor, Luke revealed his historical interests and indicated that salvation history is both particular (Jewish) and universal in its implications (the Roman world)."
in those days. This phrase connects what follows to the previous section (1:80). Christianity is grounded in history, not mythology (see notes on 1:1-4). Caesar Augustus. The great nephew of Julius Caesar. He fought his way to power by defeating Marc Antony and Cleopatra. His reign was characterized by the peaceful stability he brought to the empire (31 BC–AD 14). Originally named Octavian, he was the first Caesar to take the title Augustus after the Roman senate granted it to him. The title means holy or revered. This was the first step at making the Caesars gods for the people. One ancient city had an inscription that hailed him as "the Savior of the whole world." Luke showed the contrast between Caesar and Christ, the true Savior. census. For the purpose of collecting taxes. Luke used exaggerated language to describe its extent. It extended to the known world of the Roman Empire.