Mark 14:51

14:51 A young man was following him, wearing only a linen cloth. They tried to arrest him,

Mark 16:5

16:5 Then ¹  as they went into the tomb, they saw a young man dressed in a white robe ²  sitting on the right side; and they were alarmed.

[16:5]  ¹ tn Here καί (kai) has been translated as “then” to indicate the implied sequence of events within the narrative.

[16:5]  ² sn Mark does not explicitly identify the young man dressed in a white robe as an angel (though the white robe suggests this), but Matthew does (Matt 28:2).