Judges - Chapter 7

In this chapter Gideon fights the Midianite and Amalekite armies with only 300 men. The victory is God's rather than Gideon's.  God shows this in a dream given to one of the enemies:

"Gideon arrived just as a man was telling a friend his dream. “I had a dream,” he was saying. “A round loaf of barley bread came tumbling into the Midianite camp. It struck the tent with such force that the tent overturned and collapsed.” His friend responded, “This can be nothing other than the sword of Gideon son of Joash, the Israelite. God has given the Midianites and the whole camp into his hands."

In the dream/prophesy the victory comes from a round loaf of barley bread - which is interpreted as a sword.

Jesus calls himself bread in John 6:

"Then Jesus declared, “I am the bread of life. Whoever comes to me will never go hungry, and whoever believes in me will never be thirsty.""

And Jesus is described in Revelation as having a sword coming from his mouth -

"His feet were like bronze glowing in a furnace, and his voice was like the sound of rushing waters. In his right hand he held seven stars, and coming out of his mouth was a sharp, double-edged sword."