1 Chronicles 28:18 - Wesley's Explanatory Notes

Refined gold — Purer than any of the rest. For that was typical of the intercession of Christ, than which nothing can be more pure and perfect. The cherubim — Which Solomon was to make, (for those which were fastened to the mercy — seat were made by Moses long before) which he fitly compares to a chariot, because within them God is said to sit and to dwell. And because a chariot is made to carry a person from place to place, this expression may be used to intimate that God was not so fixed to them by the building of this temple, but that he would remove from them if they forsook him. Covered — Not above it, for that was done by Moses's cherubim, but before it, to keep it from the eyes of the high — priest, when he entered into the most holy place.