8 Bible Verses about Syncretism

And when the crowd saw what Paul had done, they shouted in the dialect of Lycaonia, "The gods have come down to us in human form." So, they called Barnabas, "Zeus," and Paul "Hermes," because Paul was the principal speaker. Then the priest of Zeus, whose temple was at the entrance of the city, brought bulls and wreaths of flowers to the gates [of the heathen temple], wanting to offer [animal] sacrifices on behalf of the crowds.

Now while Paul was waiting for them [to arrive] in Athens, he was deeply stirred in his spirit when he saw the city so full of idols. So, he debated in the synagogue with the Jews and the God-fearing people [i.e., Gentile proselytes], as well as in the open shopping market with others who met with him there. Also certain Epicurean and Stoic philosophers approached him for discussion. Some asked, "What will this know-it-all have to say?" Others said, "He seems to be advocating [a belief in] some different gods." [They said this] because he was proclaiming Jesus and the resurrection [of the dead].read more.
So, they led him to the Areopagus [i.e., an elevated assembly place called "the Hill of Mars"] and asked him, "Could we learn [more] about this new teaching you are speaking of? You are telling us some very unusual things and we would like to know what they mean." (Now the local people of Athens, along with foreigners who lived there, spent [about] all their time telling about or listening to some new idea.) Then Paul stood up in the Areopagus and said, "You men of Athens, I noticed that you are an extremely religious people in all your ways. [See verse 16] For as I traveled along [your streets] and observed what you are worshiping, I saw an altar with the inscription: [DEDICATED] TO AN UNKNOWN GOD. So, what you are worshiping ignorantly is what I am telling you about.

But certain traveling Jews, who practiced exorcism, decided that they too would attempt to speak the name of the Lord over people dominated of evil spirits while saying, "I command you [evil spirits to come out] by [the authority of] Jesus whom Paul preaches." [Now] the seven sons of a Jewish leading priest named Sceva were doing this. [On one occasion] the evil spirit replied, "I know Jesus and I know Paul, but who are you?"read more.
The man with the evil spirit then jumped on all of them, took control, then overpowered them so that they ran out of the house with their clothes torn off and badly beaten.

Do not continue to be swept off your course by all kinds of strange teachings. For it is good for your hearts to be strengthened by God's unearned favor [upon you] and not by [keeping regulations about] foods, which do not benefit those who observe them.

You cannot drink [both] the cup of the Lord and the cup of evil spirits [i.e., and still be acceptable to God]. You cannot share in [both] the Lord's table and the table of evil spirits [and still be acceptable to God].

But now that you have come to know God [as your Father], or rather, to be known by Him [as His children], how can you turn back again to the weak, cheap, elementary teachings [of the law of Moses], to which you [seem to] desire to become enslaved? You are observing [certain] days, and months, and seasons, and years [as binding religious holidays].

Do not allow anyone, who delights in acting humble [i.e., living an ascetic life] and who worships angels, to rob you of your reward [in heaven]. [Note: This "angel worship" could mean holding angels in high regard because of their role as God's messengers, or the claim that God can be approached only through angelic intermediaries]. He places great importance on what he [claims to] see [i.e., visions], being inflated with pride by his fleshly mind for no [good] reason.

Now concerning [the matter of] eating foods [once] offered as sacrifices to idols, we know that an idol is [really] nothing in the world [at all], and that there is only one God. For [even] if there were things called "gods," whether in heaven or on earth; [and even if] there were many "gods" and many "lords," yet there is [only] one God to us, [and He is] the Father, from whom all things have come, and for whom we live. And [there is only] one Lord Jesus Christ, through whom all things have come, and through whom we live.