Matthew 6:1-2
But take heed not to perform your righteousness before men, to be seen by them; otherwise indeed, you have no reward from your Father in heaven.
Matthew 6:5
And when you pray, be not like the hypocrites; for they love to pray standing in the synagogues, and at the corners of the streets, that they may be seen by men. I tell you truly, they have their reward.
Matthew 6:16
And when you fast, be not like the hypocrites, of a sad countenance; for they disfigure their faces that they may appear to men to fast. I tell you truly, they have their reward.
Mark 14:4-5
And some were displeased, [and said] to themselves, Why was this waste of the ointment?
Mark 14:37-38
And he came and found them sleeping, and said to Peter, Simon, do you sleep? Could you not watch one hour?