John 3:17

οὐ γὰρ ἀπέστειλεν … διʼ αὐτοῦ. For whatever the result of Christ's coming has been, in revealing a love of sin and bringing heavier judgment on men, this was not God's purpose in sending His Son. The Jewish idea was that the Messiah would come “to judge,” i.e., to condemn the world. κρίνω and κατακρίνω, though originally distinct, are in the N.T. sometimes identical in meaning, the result of judgment so commonly being Condemnation; cf. crime. But although the result is judgment, the bringing to fight a distinction among men and the resulting condemnation of many, yet the object was ἵνα σωθῇ ὁ κόσμος. John repeats his favourite word κόσμος three times in this verse that there may be no possibility of missing his point, that so far as God's purpose was concerned, it was one of unmixed love, that all men might be saved. The emphasis was probably due to the ordinary Messianic expectation which limited and misrepresented the love of God. Westcott remarks on this verse: “The sad realities of present experience cannot change the truth thus made known, however little we may be able to understand in what way it will be accomplished”. It might on similar grounds be argued that because God wills that all men be holy in this life, all men are holy.