“Have no fear of them!

Nothing is covered up

That will not be uncovered.

Nothing is secret

That will not be known.”

 

μὴ οὖν φοβηθῆτε αὐτούς· οὐδὲν γάρ ἐστιν κεκαλυμμένον ὃ οὐκ ἀποκαλυφθήσεται, καὶ κρυπτὸν ὃ οὐ γνωσθήσεται.

 

This verse of Matthew is the same as in Luke, chapter 8:17 and chapter 12:2, and Mark, chapter 4:22, except the first phrase that is unique to Matthew.  Jesus, via Matthew, said that they had nothing to fear (μὴ οὖν φοβηθῆτε αὐτούς), because anything hidden, covered up, concealed, or veiled would be uncovered, brought to light, or revealed (οὐδὲν γάρ ἐστιν κεκαλυμμένον ὃ οὐκ ἀποκαλυφθήσεται,).  Anything hidden or secret would be known or ascertained (καὶ κρυπτὸν ὃ οὐ γνωσθήσεται).  It is not clear what is meant by this saying, except that at some future point they would understand things that they did not know now.