One of the distinctive matters of early Christianity (and of all Christians, for that matter, until recently) is that they prayed toward the East instead of toward Jerusalem. This was because this was the direction that the Apostles saw Jesus’ Ascension from the Mount of Olives (east of Jerusalem), and because multiple Biblical passages indicated that Christ would return from the east, just as the angels also had said He would. Early Christians enjoyed picturing Jesus as the Sun of Justice from the Prophet Malachi, and as the eager Sun/Bridegroom/Lord from the Psalms. (“He has pitched His tabernacle in the Sun,” etc., was one of the early Christians’ favorite verses, in fact; it gets referenced again and again in their literature.) That’s why (until recent decadent days) all Christian churches and Christian graves were oriented east/west, if it was at all possible.
Pagans totally didn’t get this reasoning. It confused them.
The same is true of today’s anti-Catholics, anti-theists, etc.