Why is the number 7 God's number?

The number 7 is often considered God's number due to its significant role in various religions and cultures. In Christianity, for example, God created the world in 7 days, highlighting the number's importance. Additionally, 7 is a prevalent and auspicious number in many cultures, appearing in various aspects of life such as the 7 days of the week, 7 colors of the rainbow, and more. Its ubiquity and special meaning make it a sacred number, often associated with divinity and perfection.