One of his disciples, Andrew, the brother of Simon Peter, said to him, "There is a boy here who has five barley loaves and two fish; but what good are these for so many?" Jesus said, "Have the people recline." So the men reclined, about five thousand in number. Then Jesus took the loaves, gave thanks, and distributed them to those who were reclining, and also as much of the fish as they wanted. (Jn 6:1-15)
https://bible.usccb.org/bible/readings/072824.cfm
Because Mark’s gospel is so short, the lectionary fills it out with Chapter 6 from the Fourth Gospel (according to John) over the next few Sundays. And the passages that follow this Sunday’s reading form what is called The Bread of Life Discourse. Of course, the Lord knows well what he is doing—feeding hungry people is an essential part of the Bread of Life!