Jamieson, Fausset and Brown on 1 Kings 8:8

8. they drew out the staves--a little way, so as to project (see on Ex 25:15; Nu 4:6); and they were left in that position. The object was, that these projecting staves might serve as a guide to the high priest, in conducting him to that place where, once a year, he went to officiate before the ark; otherwise he might miss his way in the dark, the ark being wholly overshadowed by the wings of the cherubim.