To kill Zhou Tian, given the circumstances at that time, the Space God King felt it was something he could achieve at any moment. However, if he were to kill Zhou Tian or even just severely injure him at that moment, it would likely provoke the group of Divine Kings immediately.
Considering the situation at that time, if their battle produced a result, it would likely lead all the observing Divine Kings to take action immediately. And if it truly came to that, with so many Divine Kings acting at once, even with the Space God King's strength, he did not have the confidence that he could seize the Supreme Divine Treasure amidst the chaos.
However, even though typically he couldn't possibly seize the Supreme Divine Treasure, if there were a suitable opportunity, then being in the position he was in, the Space God King could be the first to come into contact with the Supreme Divine Treasure, and it wouldn't be an impossible feat.
