'Anointing' in the Bible

Is any among you sick? Let him call for the elders of the church; and let them pray over him, anointing him with oil in the name of the Lord:

And ye have an anointing from the Holy One, and ye know all the things.

And as for you, the anointing which ye received of him abideth in you, and ye need not that any one teach you; but as his anointing teacheth you; concerning all things, and is true, and is no lie, and even as it taught you, ye abide in him.