Jamieson, Fausset and Brown on 1 Kings 8:62

62. the king, and all Israel ... offered sacrifice before the Lord--This was a burnt offering with its accompaniments, and being the first laid on the altar of the temple, was, as in the analogous case of the tabernacle, consumed by miraculous fire from heaven (see 2Ch 7:1). On remarkable occasions, the heathens sacrificed hecatombs (a hundred animals), and even chiliombs (a thousand animals), but the public sacrifices offered by Solomon on this occasion surpassed all the other oblations on record, without taking into account those presented by private individuals, which, doubtless, amounted to a large additional number. The large proportion of the sacrifices were peace offerings, which afforded the people an opportunity of festive enjoyment.