Matthew 16:20

20Thenτότεcommandedδιεστείλατοtheτοῖςdisciplesμαθηταῖςthatἵναto no oneμηδενὶthey should sayεἴπωσινthatὅτιHeαὐτόςisἐστινtheὁChristχριστός.

Then He instructed the disciples that they should tell no one that He is the Christ.