Albert Barnes on Matthew 11:27

All things are delivered, etc. The same doctrine is clearly taught often in the New Testament. See Jn 3:35, 6:46, 10:15 Co 1:16,17. It means that Christ has control over all things, for the good of his church; that the government of the universe is committed to him as Mediator, that he may redeem his people, and guide them to glory, Eph 1:20-22.

No man knoweth the Son. That is, such is the nature of the Son of God; such the mystery of the union between the Divine and human nature; such his exalted character as Divine, that no mortal can fully comprehend him. None but God fully knows him. Had he been a mere man, this language surely would not have been used of him.

Neither knoweth any man the Father, etc. In the original this is, neither knoweth any one the Father except the Son. That is, no one man or angel clearly comprehends the character of the infinite God, but the Son--the Lord Jesus--and he to whom he makes him known. This he does by revealing the character of God clearly, and more especially, by manifesting his character as a sin-forgiving God, to the soul that is weary and heavy laden, Jn 17:6.

(a) "All things" Mt 28:18, Lk 10:22, Jn 3:35, 17:2, 1Cor 15:27 (b) "neither knoweth" Jn 1:18, 1Jn 5:20