Jesus’ close friend John records Jesus calling God his Father. Those who heard him knew he was making a distinction between himself and everyone else. His claim of equality with God enraged many people and is the ultimate reason why He was
"Jesus said to them, 'My Father is always at His work to this very day, and I, too, am working.' For this reason, the Jews tried all the harder to kill him; not only was he breaking the Sabbath, but he was even calling God his own Father, making himself equal with God."
John 5:17-18