'Lamp' in the Bible

He that is ready to stumble with the foot is a lamp despised in the thought of him that is at ease.

The light shall become dark in his tent, and his lamp over him shall be put out.

How often is the lamp of the wicked put out, and cometh their calamity upon them? Doth he distribute sorrows to them in his anger?

When his lamp shone over my head, and by his light I walked through darkness;