All things are delivered unto me of my Father: and no man knows the Son, but the Father; neither knows any man the Father, except the Son, and he to whomever the Son will reveal him.
All Commentaries on Matthew 11:27 Go To Matthew 11
Hilary of Poitiers
AD 368
Or that we may not think that there is any thing less in Him than in God, therefore He says this.
And also in the mutual knowledge between the Father and the Son, He teaches us that there is nothing in the Son beyond what was in the Father; for it follows, “And none knoweth the Son but the Father, nor does any man know the Father but the Son.”.
For this mutual knowledge proclaims that they are of one substance, since He that should know the Son, should know the Father also in the Son, since all things were delivered to Him by the Father.