The Kalam Cosmological Argument

Philosophers have offered several versions of the "Cosmological Argument" for God's existence. These arguments attempt to move from the existence of the universe (or from some fact about the universe as a whole) to a cause of the universe. One popular version is called the "Kalam Cosmological Argument," championed in recent years by William Lane Craig. The Kalam Cosmological Argument typically proceeds in two steps. First, a case is made for a cause of the universe:

1. Whatever begins to exist must have a cause.
2. The universe began to exist.
3. Therefore, the universe must have a cause.

Second, it is argued that the cause of the universe must have attributes that are typically ascribed to God (e.g., timelessness, immateriality, etc.).

Here's a short video explaining the Kalam Cosmological Argument.