When non-Jews converted to Christianity in the first century, they did not continue to use idols in their worship of God. Note what Demetrius, a silversmith who made idols in Ephesus, said about the apostle Paul’s preaching: “Men, you well know that from this business we have our prosperity. Also, you behold and hear how not only in Ephesus but in nearly all the district of Asia this Paul has persuaded a considerable crowd and turned them to another opinion, saying that the ones that are made by hands are not gods.”—Acts 19:25, 26.
Paul’s own words confirm the accusation made by Demetrius. When speaking to the Greeks in Athens, Paul said: “We ought not to imagine that the Divine Being is like gold or silver or stone, like something sculptured by the art and contrivance of man. True, God has overlooked the times of such ignorance, yet now he is telling mankind that they should all everywhere repent.” (Acts 17:29, 30) On the same subject, Paul wrote to those in Thessalonica and commended them with the words: “You turned to God from your idols.”—1 Thessalonians 1:9.
Not only Paul but also the apostle John warned Christians against using images in their worship. At the end of the first century, John firmly told them: “Guard yourselves from idols.”—1 John 5:21.