1 Chronicles 28:18 - Matthew Poole's English Annotations on the Holy Bible

Of the chariot of the cherubims, i.e. of the cherubims, which Solomon was to make, of which see 1 Kings 6:23, (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 oft said to sit and to dwell, as 2 Kings 19:5 Psalms 80:1, Psalms 99:1; and sometimes he is said to ride upon a cherub, Psalms 18:10. 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 his temple, but that he both could and would remove from them if they forsook him. And when they did so, God did make use of the chariot of his cherubims to convey himself away from them, as is noted, Ezekiel 10:15, &c. Covered the ark; not above it, for that was done by Moses's cherubims, but before it, to keep it from the eyes of the high priest when he entered into the most holy place, 1 Kings 6:23.