In the fourteenth chapter of the first book of his treatise On the Holy Spirit, St. Ambrose does something interesting with story of Gideon (Judges 7:16-22):
when Gideon was about to overcome the Midianites, he commanded three hundred men to take pitchers, and to hold lighted torches inside the pitchers, and trumpets in their right hands. Our predecessors have preserved the explanation received from the apostles, that the pitchers are our bodies, fashioned of clay, which know not fear if they burn with the fervour of the grace of the Spirit, and bear witness to the passion of the Lord Jesus with a loud confession of the Voice.
This is an example of how the Fathers of the Church play with the imagery of the Old Testament. Note where he goes:
What, then, is that fire? Not certainly one made up of common twigs, or roaring with the burning of the reeds of the woods, but that fire which improves good deeds like gold, and consumes sins like stubble. This is undoubtedly the Holy Spirit, Who is called both the fire and light of the countenance of God; light as we said above: ‘The light of Thy countenance has been sealed upon us, O Lord’ (Ps. 4:6). What is, then, the light that is sealed, but that of the seal of the Spirit, believing in Whom, ‘ye were sealed,’ he says, ‘with the Holy Spirit of promise’ (Eph. 1:13).
Thus, to continue the metaphor that St.Ambrose started with Gideon, the Midianites are sin and death. Despite the fact that our vessels of clay may crack and shatter, the flame which brightly burns inside of us will send sin and death fleeing from the glory of God. Amen.