The statement "The sun rises in the east" is commonly used as a figure of speech or a simplified way to describe the apparent motion of the sun from the perspective of an observer on Earth. From our vantage point on the Earth's surface, it appears as though the sun rises in the east, moves across the sky during the day, and sets in the west.
However, this phenomenon is not due to the sun's actual motion. It's a result of the rotation of the Earth on its axis. The Earth rotates from west to east, causing the sun to appear to move across the sky from east to west.
In reality, the sun remains relatively stationary in relation to the Earth. It's the rotation of the Earth that gives us the perception of the sun rising and setting. Therefore, while it's accurate to say "the sun rises in the east" from our perspective, it's important to understand that it's a description of the apparent motion rather than the actual motion of the sun.