1 Corinthians 2:11

Τίς γὰρ οἶδεν ἀνθρώπων τὰ τοῦ ἀνθρώπου, εἰ μὴ τὸ πνεῦμα τοῦ ἀνθρώπου τὸ ἐν αὐτῷ; Οὕτως καὶ τὰ τοῦ Θεοῦ οὐδεὶς οἶδεν, εἰ μὴ τὸ Πνεῦμα τοῦ Θεοῦ.

Tis gar oiden anthrōpōn ta toy anthrōpoy, ei mē to pneyma toy anthrōpoy to en aytō; Oytōs kai ta toy Theoy oydeis oiden, ei mē to Pneyma toy Theoy.

King James Version (KJV)

For what man knoweth the things of a man, save the spirit of man which is in him? even so the things of God knoweth no man, but the Spirit of God.

Modern English

For who knows a person's thoughts except their own spirit within them? In the same way no one knows the thoughts of God except the Spirit of God.