Jesus had enemies. As soon as he’s declared Son of God in the Gospel of Mark, he’s driven into the wilderness to face Satan, his first and greatest adversary (Mark 1:12).
Satan lurks behind all opposition to Jesus, and his demons show up repeatedly to entice and corrupt, but surprisingly, his henchmen are more often theologians than demons. Satan is mentioned only five times in Mark, and demons only thirteen times. But the scribes and Pharisees are mentioned 29 times, and in 27 of those verses, they are wielding their knowledge of the Scriptures in opposition to the Christ.