A more thorough explanation:

Term: in principio
Definition: At the beginning.
Example: In principio, God created the heavens and the earth. This means that at the very start of everything, God made the world.
Explanation: "In principio" is a Latin phrase that means "at the beginning." It is often used to refer to the start of something important, like the creation of the world. The example shows how the phrase is used in the Bible to describe the very beginning of time.