In "Biblical Perspective" Gayle Woods writes:
Jesus is touched by the feelings of our infirmities. He is moved when His people are hurting. The tears of Mary and the Jews caused Jesus to groan — to be troubled. He is no less moved when we are going through our difficult times of life. He sees every trouble, every trial, every tear, and groans with us. The word translated troubled means to be “intensely agitated.”
Discussion: How does it encourage you to know that Jesus was "intensely agitated" by the tears of Mary and the Jews?
Source: Miracles of Jesus: Adult Teacher's Insights, page 70.