1 Kings 21:9 - Wesley's Explanatory Notes

A fast — To remove all suspicion of evil design in Ahab, and to beget a good opinion of him amongst his people, as if he were grown zealous for God's honour, and careful of his people's welfare, and therefore desirous to enquire into all those sins which provoked God against them. On high — On a scaffold, or high — place, where malefactors were usually placed, that they might be seen, and heard by all the people.