'Pure' in the Bible

She was given fine linen to wear, bright and pure.For the fine linen represents the righteous acts of the saints.

The armies that were in heaven followed Him on white horses, wearing pure white linen.

The building material of its wall was jasper, and the city was pure gold like clear glass.

The 12 gates are 12 pearls; each individual gate was made of a single pearl. The broad street of the city was pure gold, like transparent glass.