Silly!

It doesn't revolve around its own axis, in diurnal motion around the Earth RELATIVE TO EARTH, its orbital centre axis. (Well, the barycentre, technically.)

The Moon does rotate on its axis around the Earth, one face in.

It also (as a system with the Earth) rotates around the Sun, but the motion is defined by the rotation around the Earth. It actually does a sine wave movement around the Sun as it orbits the Sun though, because its first-order orbit is around the Earth.


-- Because it is orbiting the Earth, from the Sun's viewpoint it faces different directions. So it looks like a purer (like Earth or Venus) diurnal revolution. But the only reason for the latter is the rotation around the Earth, thus its turning while orbiting the Sun is a secondary motion.

If the Sun, not the Earth, were its only axis for orbit, the Moon would not revolve diurnally at all relative to the Sun, but the Earth and Venus do.

This is the difference. So, to compare the issues correctly we must ask what the Moon does relative to Earth, not Sun, to find if it revolves on its axis, while going around Earth, to see if it does what Earth and Venus do relative to the Sun. It does not. Thus, if Earth is the Moon's "Sun" you can see that the Moon does not revolve.

The view from the Sun is a different point of reference -- but it does get a solar day. This is from its orbit of the Earth, not, properly, from its orbit of the Sun.

The Moon does not revolve diurnally relative to the Earth; thus it is not comparable with what the Earth or Venus do, relative to the Sun.

For Earth and Venus revolve diurnally on their way around the Sun (their orbital centre), and the Moon does not around the Earth (around its orbital centre).

Got it?