The question of God's existence before time is a philosophical and theological one that has been debated for centuries. Different religious and philosophical traditions have different perspectives on this matter.
In some religious beliefs, God is considered eternal and transcendent, existing outside of time altogether. According to this view, God is not bound by the limitations of time and is not subject to its linear progression. Instead, God is seen as existing in a timeless and unchanging state. In this perspective, God would have always existed, regardless of the existence of time.
On the other hand, some philosophical arguments propose that the concept of causality, which is often associated with the progression of time, may not apply to a timeless and transcendent being like God. According to these arguments, the question of what came "before" time may not be meaningful when applied to God, as the notion of temporal sequence may not be applicable.
It's important to note that these are complex and abstract concepts that go beyond the scope of empirical observation or scientific investigation. The existence of God and the nature of time are matters of faith, personal belief, and philosophical inquiry, which can vary among individuals and different religious or philosophical traditions.