So we are even more confident of the message proclaimed by the prophets. You will do well to pay attention to it, because it is like a lamp shining in a dark place until the Day dawns and the light of the morning star shines in your hearts.(2 Peter 1:19) Good News Translation
Any time someone uses the phases of Venus as proof of heliocentricity they’re demonstrating that their knowledge of the subject matter is at or below a superficial level.
The phases of Venus are observed from the Earth, therefore they’re inherently and empirically Geocentrospheric. Venus and Mercury orbit the sun in the Geocentrospheric model, and so the observations of their phases is exactly the same as in the heliocentric model. The problem here is one of historical context.
The religious dogma of Galileo’s time was that ALL stellar bodies have to orbit the Earth. This is incorrect, so the religious authorities that Galileo was up against were uninformed and Galileo demonstrated it. He didn’t prove heliocentricity, he proved that religious dogma was an incorrect geocentric model. Some planetary bodies orbit something other than the Earth, it’s no big deal.
It may not have occurred to Galileo that Venus and Mercury are orbiting the sun, which is orbiting the Earth. Such as it is modern day atheist science trolls (ASTs) scientifically illiterate science worshipers (SISWs) and SciPop devotees, who think that the phases of Venus or the moons of Jupiter are magic bullets against Geocentrosphericity, are 400 years behind the times.