Because Zhou Tian realized the change in the situation at the time, he stopped in his tracks the moment he reacted. Zhou Tian knew that outside, there was indeed no chance of fighting against that group of deities, but in the current dangerous situation, that group of deities also had no way of threatening him.
However, although Zhou Tian was aware that he didn't have to fear that group of deities in that dangerous place, that group of deities clearly hadn't realized the situation yet. So, according to their original thinking, when Zhou Tian stopped, they directly chased after him.
Out of the hatred in their hearts, even though they knew that their current situation couldn't be entirely blamed on Zhou Tian, the deities with nowhere to vent their anger still planned to kill Zhou Tian. As such, with their mindset at the time, those deities showed no mercy and launched an attack on Zhou Tian the moment they caught up with him.