Yeshua fed the 5000 with five barley loaves just before Passover at the start of the barley harvest. Torah forbids eating from the new harvest until after the FirstFruits harvest during Passover, so this bread was made from the previous year's harvest. Perhaps five barley loaves from the old harvest is metaphor of people fed by Torah.
John 6:9

The disciples collected twelve baskets of leftovers after everyone had eaten their fill. These are the faithful remnant of Israel gathered from the nations.
John 6:13