Do not work for food that perishes but for the food that endures for eternal life, which the Son of Man will give you. (Jn 6:22-29)
https://bible.usccb.org/bible/readings/042423.cfm
"The food . . . which the Son of Man will give you." The Eucharist is the center of our faith—the faith that we proclaim as we echo the words of Saint Paul: When we eat this Bread and drink this Cup, we proclaim your Death, O Lord, until you come again.