In fact, these classical temples were mostly for the divinity's residence. Classical Greek temples like the Parthenon (the "restored" replica in Nashville, TN, is shown below, left) were confusing from the outside. Note there is no clear "front" - the columns and three steps are the same on all sides. The door to the interior is hidden under the eaves of the building and behind the forest of columns. If followers couldn't find their way in, no worries. They weren't really invited. The attendants - priests, priestesses, etc. - took care of the god without having a lot of people around.
Roman builders adapted the typical Greek design. Where the Greeks had access on all four sides of the building, Roman architects directed all people to the single entrance. In the Maison Carree (in Nimes, France, shown below, center) stairs are found only on one side of the building, and even that single set of steps is flanked by huge podia, further controlling public access to the temple.
So which do you think is the style that appealed to Christians when they began to build their own buildings? Greek? Roman? Interestingly, they chose neither the Greek temple nor the Romans' interpretation of it. Instead they chose to use the basilica as the basis for their religious buildings. The basilica was a civic building, rectangular in shape, usually with a curved apse at one end. The basilica was used for public assemblies and as a court of law. Above, right, is the Basilica of Sant'Apollinare in Classe (Ravenna, Italy), which in its original form - disregard the bell tower - was a basilica plan.
In light of Paul's speech to the people of Athens it makes sense that those Christians rejected plans for temples to house gods and instead based their church buildings on a plan that was more about the work of the people.
