'Pure' in the Bible

“Command the children of Israel to bring to you clear oil from beaten olives for the light [of the golden lampstand], to make a lamp burn continually.

He shall keep the lamps burning on the pure gold lampstand before the Lord continually.

You shall set the bread of the Presence (showbread) in two rows, six in a row, on the pure gold table before the Lord.

You shall put pure frankincense [in two censers, one] beside each row, so that it may be with the bread as a memorial portion, an offering by fire to the Lord.