The high priest's breastpiece (Exod. 28: 17–20) had twelve jewels, or precious stones, three in each row. The foundations of the New Jerusalem are also said to be adorned with twelve jewels (Rev. 21: 19–20). Other types of jewellery were bracelets and ear-rings (Gen. 24: 22) and necklaces (Gen. 41: 42). Some gold and copper pendant items discovered in excavations suggest that before the Exile jewellery which had polytheistic significance was worn. This would explain the denunciations of the prophets (Isa. 3: 18–22; Ezek. 16: 17).