We used to believe it was because of seeing the others' intense grief at bereavement:
bhs
chap. 7 p. 72 par. 5 - Seeing their sadness,
he felt hurt and cried.
w13
9/15 p. 32 - Still, he gave way to tears,
moved by his deep love and compassion for his friends.
w08
5/1 p. 24 par. 3 - Jesus’ heart was touched by the
pain of others.
w06
5/1 p. 28 par. 6 - He was so deeply moved by Mary and
Martha’s anguish
But now we believe it was because of his personal grief regarding Lazarus' death!!!!
“After the death of a close friend named Lazarus, Jesus' grief was intense....The pain was crushing!”
@ 4 mins 35 secs - https://www.jw.org/en/news/jw/region/global/2022-Governing-Body-Update-7/
John
11:11-17 seems to disagree with the claim that Jesus was "crushed" at the news!