See this explained in the Mark 12:13-27 notes.
1, 2. Attention Focused on Birth of Jesus—The Lord moved upon the wise men to go in search of Jesus, and He directed their course by a star. This star, leaving them when near Jerusalem, led them to make inquiries in Judah; for they thought it was not possible for the chief priests and scribes to be ignorant of this great event. The coming of the wise men made the whole nation acquainted with the object of their journey, and directed their attention to the important events which were transpiring (The Spirit of Prophecy 2:26). 5BC 1077.1Read in context »
No sooner were the Pharisees silenced than the Sadducees came forward with their artful questions. The two parties stood in bitter opposition to each other. The Pharisees were rigid adherents to tradition. They were exact in outward ceremonies, diligent in washings, fastings, and long prayers, and ostentatious in almsgiving. But Christ declared that they made void the law of God by teaching for doctrines the commandments of men. As a class they were bigoted and hypocritical; yet among them were persons of genuine piety, who accepted Christ's teachings and became His disciples. The Sadducees rejected the traditions of the Pharisees. They professed to believe the greater portion of the Scriptures, and to regard them as the rule of action; but practically they were skeptics and materialists. DA 603.1
The Sadducees denied the existence of angels, the resurrection of the dead, and the doctrine of a future life, with its rewards and punishments. On all these points they differed with the Pharisees. Between the two parties the resurrection was especially a subject of controversy. The Pharisees had been firm believers in the resurrection, but in these discussions their views in regard to the future state became confused. Death became to them an inexplicable mystery. Their inability to meet the arguments of the Sadducees gave rise to continual irritation. The discussions between the two parties usually resulted in angry disputes, leaving them farther apart than before. DA 603.2
In numbers the Sadducees fell far below their opponents, and they had not so strong a hold upon the common people; but many of them were wealthy, and they had the influence which wealth imparts. In their ranks were included most of the priests, and from among them the high priest was usually chosen. This was, however, with the express stipulation that their skeptical opinions should not be made prominent. On account of the numbers and popularity of the Pharisees, it was necessary for the Sadducees to concede outwardly to their doctrines when holding any priestly office; but the very fact that they were eligible to such office gave influence to their errors. DA 604.1Read in context »