Elijah is a man who's mantle is 'the chariots and horsemen of Israel'. In layman language, think of Elijah as an army and its munitions, all encompassed in one man. We are given a scripture where the man of God ran faster than horses. While horses can be alluded to to symbolize power, war, glory and strength (1 Kings 18:46), The Lord tells Jeremiah that while he's worried about running with footmen, God's plan for him is to run with horses. A much greater purpose, than man can accomplish by his own works except by the spirit of God.
Reading: 1 Kings 18:46, Jeremiah 12:5, Psalm 16:5, Romans 12:2