This week’s gospel is the aftermath of the feeding of the 5000, a discussion between Jesus and the crowds about motivations, signs, manna, Moses and the Bread of Life.
But it also contains this exchange:
“What must we do to perform the works of God?”
Jesus answered them, "This is the work of God, that you believe in him whom he has sent." John 6:28-29
The purpose of God’s work is that we believe in Jesus as sent by God. Our “work” is to believe the Truth of who Jesus is and then, in the words of our epistle this week, “to lead of life worthy of the calling to which you have been called, with all humility and gentleness, with patience, bearing with one another in love, making every effort to maintain the unity of the Spirit in the bond of peace". Living and worshiping together as one body, using the gifts we are given to build up the body of Christ, is not an extra thing, an optional thing that we add to our already full life, it is the center of our response to God and his gift of eternal life.