'Pure' in the Bible

"Command the {Israelites} that they should bring pure olive oil [from] beaten [olives] for the light to {present} a lamp continually.

On the pure [golden] lampstand he shall arrange for the lamps {before} Yahweh continually.

And you shall place them [in] two rows, six [to the] row, on the pure [gold] table {before} Yahweh.

And you shall put pure frankincense on each row so that it shall be for the bread as a memorial offering, an offering made by fire for Yahweh.