And even if I do judge, my judgement is just; for I am not alone, but the Father who sent me is with me.

Even if I am judging, my decision is right, because I am not by myself--with me is the Father who sent me.

And when I do judge, my judgment is true. For I am not alone, but it is I and he who sent me: the Father.

Yet, even if I were to judge, my judgment would be trustworthy; because I am not alone, but the Father who sent me is with me.

And if I judge, He adds this correction, that he may not appear entirely to surrender his right. If I judge, says he, my judgment is true, that is, it is entitled to authority. Now the authority arises from this consideration, that he does nothing but according to the commandment of the Father. For I am not alone. This phrase amounts to an affirmative, that he is not one of the ordinary rank of men, but that he must be considered along with the office which was assigned to him by the Father. But why does he not rather make an open assertion of his Divinity, as he might truly and justly have done? The reason is, that as his Divinity was concealed under the veil of the flesh, he brings forward his Father, in whom it was more manifest. Still, the object of the discourse is, to show that all that he does and teaches ought to be accounted Divine.

And yet, if I judge - If I should express my judgment of men or things. He was not limited, nor forbidden to do it, nor restrained by any fear that his judgment would be erroneous.
My judgment is true - Is worthy to be regarded.
For I am not alone - I concur with the Father who hath sent me. His judgment you admit would be right, and my judgment would accord with his. He was commissioned by his Father, and his judgment would coincide with all that God had purposed or revealed. This was shown by the evidence that God gave that he had sent him into the world.

And yet if I judge, my judgment is true,.... Because he saw not as man did, nor looked unto, and judged according to the outward appearance of things; but looked into the heart, and knew what was in it, being the searcher and trier of it; to whom all things are naked and open, and therefore cannot be deceived or imposed upon; his judgment must be sure and infallible:
for I am not alone, but I and the Father that sent me; he was not separate from the Father, or at a distance from him, when he was here on earth; he was in his bosom, and in heaven, as the Son of God, when as the son of man, he was below; nor was he alone in his testimony and judgment, the Father joined with him therein: and which is a further proof of the truth of his testimony, and the certainty of his judgment.

And yet if I judge, my judgment is true, &c.--Ye not only form your carnal and warped judgments of Me, but are bent on carrying them into effect; I, though I form and utter My judgment of you, am not here to carry this into execution--that is reserved to a future day; yet the judgment I now pronounce and the witness I now bear is not Mine only as ye suppose, but His also that sent Me. (See on John 5:31-32). And these are the two witnesses to any fact which your law requires.

I am not alone - No more in judging, than in testifying: but I and the Father that sent me - His Father is in him, and he is in the Father, John 14:10-11; and so the Father is no more alone without the Son, than the Son is without the Father, Proverbs 8:22-23, Proverbs 8:30. His Father and he are not one and another God, but one God, (though distinct persons,) and so inseparable from each other. And though the Son came from the Father, to assume human nature, and perform his office as the Messiah upon earth, as God is sometimes said to come from heaven, for particular manifestations of himself; yet Christ did not leave the Father, nor the Father leave him, any more than God leaves heaven when he is said to come down to the earth.