Mark 14:50 states:

“Then everyone deserted him and fled.” (ESV)

This verse refers to the moment Jesus was arrested in Gethsemane. The disciples, including John, fled out of fear. Here’s what we know about John in light of this:

Immediate Response

• John fled like the others: Mark 14:50 indicates all the disciples deserted Jesus. That includes John.

Later Developments

• John followed at a distance: According to John 18:15–16, “another disciple” (likely John himself) followed Jesus into the high priest’s courtyard. This shows he returned and stayed closer than most.
• At the cross: In John 19:26–27, Jesus speaks directly to John while on the cross, entrusting Mary to his care. This indicates John was present at the crucifixion, unlike most of the others who remained in hiding.

Summary

• John fled initially (Mark 14:50), just like the rest.
• He later returned and followed Jesus more closely (John 18:15).
• He was present at the crucifixion (John 19:26–27), showing courage and love.

Conclusion (Opinion)

John’s journey reflects both human weakness (initial fear) and deep devotion (returning and staying near Jesus in His final hours). His presence at the cross contrasts with the others’ absence and underscores his unique closeness to Jesus.