1. An image or other material object representing a deity to which religious worship is addressed.
2. Bible; a. An image of a deity other than God.
b. The deity itself.
3. Any person or thing regarded with blind admiration, adoration, or devotion.
Madame Curie had been her childhood idol.
4. A mere image or semblance of something, visible but without substance, as a phantom.
5. A figment of the mind; fantasy.
6. A false conception or notion; fallacy.
2 Corinthians 4:18 While we look not at the things which are seen, but at the things which are not seen: for the things which are seen are temporal; but the things which are not seen are eternal.
Galatians 3:13 Christ hath redeemed us from the curse of the law, being made a curse for us: for it is written, Cursed is every one that hangeth on a tree (cross:)
Jeremiah 10:2-6 Thus saith the LORD, Learn not the way of the heathen, and be not dismayed at the signs of heaven; for the heathen are dismayed at them. For the customs of the people are vain: for one cutteth a tree out of the forest, the work of the hands of the workman, with the axe. They deck it with silver and with gold; they fasten it with nails and with hammers, that it move not. They are upright as the palm tree, but speak not: they must needs be borne, because they cannot go. Be not afraid of them; for they cannot do evil, neither also is it in them to do good. Forasmuch as there is none like unto thee, O LORD; thou art great, and thy name is great in might.
1 John 5:21 – Little children, keep yourselves from idols. Amen.