Then charged he his disciples that they should tell no man that he was Jesus the Christ.
All Commentaries on Matthew 16:20 Go To Matthew 16
Theophylact of Ochrid
AD 1107
Before the Cross, Christ wanted to obscure His own glory. For if, before the Passion, men heard that He was God and then saw Him suffering, how could they not be scandalized? This is why He hid Himself from the multitude, so that after the Resurrection He might be known without causing any scandal, the Holy Spirit removing all doubt by means of the miracles performed.