Mark 9:10

9:10 They kept this statement to themselves, discussing what this rising from the dead meant.

Mark 12:25

12:25 For when they rise from the dead, they neither marry nor are given in marriage, but are like angels ¹  in heaven.

¹ sn Angels do not die, nor do they eat according to Jewish tradition (1 En. 15:6; 51:4; Wis 5:5; 2 Bar. 51:10; 1QH 3.21-23).