Then the other disciple (whom Jesus loved) also went in, the one who had arrived at the tomb first, and he saw and believed. (Jn 20:1a, 2-8)
https://bible.usccb.org/bible/readings/122723.cfm
We celebrate today the Fourth Gospel, the one we call “according to John.” The church has always wanted to associate this anonymous gospel with the Apostle John, but the gospel itself doesn’t speak about John, rather the gospel focuses on the Beloved Disciple. As the final editor of the gospel says of the Beloved Disciple: “It is this disciple who testifies to these things and has written them, and we know that his testimony is true” (Jn 21:24).