Verses with the word sad in the New Testament (3 verses):

Matthew 6:16
Moreover when ye fast, be not, as the hypocrites, of a sad countenance: for they disfigure their faces, that they may appear unto men to fast. Verily I say unto you, They have their reward.

Mark 10:22
And he was sad at that saying, and went away grieved: for he had great possessions.

Luke 24:17
And he said unto them, What manner of communications are these that ye have one to another, as ye walk, and are sad?