The Bible clearly shows that they should not be used in worship:
“Guard yourselves from idols.” (1 John 5:21)
“What agreement does God’s temple have with idols?” (2 Corinthians 6:16)
Notice what God Himself said about idols:
Ex. 20:4, 5: "You shall not make yourself a carved image or any likeness of anything in heaven or on earth beneath or in the waters under the earth; you shall not bow down to them or serve them. For I, Yahweh your God, am a jealous God." (JB)
For more, see:
Should Idols / Icons be used in worship?
Should Images, "Patron Saints" or the Rosary be used in prayer?
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