But we don't see that. Instead we see what we would expect if religion is man made, i.e. Many regional religions, and great fragmentation and many different sects among the various religions. There's no unity, no unified message, but many local religions, many of which claim their practitioners are a chose people with special rights to kill, rape, murder, and enslave all who hold beliefs different them their own. This is what we would expect from man made, not god made religions.
Another observation:
19 Because that which may be known of God is manifest in them; for God hath shewed it unto them.
20 For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead; so that they are without excuse:
21 Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened.
22 Professing themselves to be wise, they became fools,
23 And changed the glory of the uncorruptible God into an image made like to corruptible man, and to birds, and fourfooted beasts, and creeping things.
