In his gospel John says that Jesus was brought forth from out of breath, and from out of water/flesh. Writing about a similar theme in his letter, he says once again that Jesus is the one who came by water/flesh. He is an incorporeal being who took on the likeness of human flesh. John then adds something else – Jesus came from out of water/flesh and blood. (verse 6). This is the second time in this letter that John mentions blood. The first was at the beginning of his letter: ‘But if we are walking within the light in the same way that He is within the light, [then] we possess partnership with one another and the blood of Jesus His Son is cleansing us away from every kind of missing the mark, self-forfeiture and no share’ (I John 1 v 7). John’s Hebrew Christian readers would have been familiar with the importance of the blood of Jesus. When Christians confess that Jesus, the Son of God, came in the flesh, they do not then mean as a result of this he was therefore some sort of ‘alien being’ who did not have blood like the rest of humanity. The lifeblood of Jesus is absolutely central to his mission as deliverer and I am sure that it is this central theme that John has in mind.
How does Jesus deliver those whom God has selected away from fair, proportionate divine judicial condemnation? God does not merely dismiss His Judgement with a cursory dismissal or metaphorical wave of His hand as though such judgement no longer matters. Rather, Jesus delivers those whom God has selected by paying the price that God’s judicial decision requires. Jesus pays the redemption price required and thereby buys them back. Sinai Covenant Law allowed for a substitute payment to be made with regards to those who were found guilty of breaking the Law. If a man stole some shoes he did not necessarily have to buy a replacement pair of shoes in recompense as part of his repentance and payment for his lawlessness. Such a man was allowed to make a substitute payment that was determined to be a sufficient recompense. This remained the case even when divine Law demanded the death penalty.
In addition, within Covenant Law, blood was considered to be set apart. Life was in the blood and so some Hebrew dietary laws prohibited eating meat that still had blood in it. Blood was ‘life-blood’ and the substitution payment that the only-begotten Son of God was required to pay in order to satisfy the price demanded by God’s righteous judgement was the shedding of his life-blood as the unblemished lamb of God. The Son of God was the unblemished sacrificial sin-offering of the Father. Jesus the anointed deliverer came by means of water – he was born in the likeness of sinful flesh (but without sin), and he came in blood – delivering sinners condemned to death by means of the substitute sacrificial offering of his lifeblood as a ransom payment to appease the judicial condemnatory decision of God. Life for life.
This is so important that John emphasizes these themes again, ‘not within water only, but within water and blood’ (Verse 6b). John is combating the teaching of pseudo-prophets and false teachers such as the Christian Gnostics. The fact that Jesus was born physically, in the similitude of sinful flesh, with skin and bone and blood, constitute essential and fundamental concepts within Apostolic teaching.
John has been arguing that only Christians can be persuaded of this in their heart to the point of obedience. Why are ‘outsiders’ or unbelievers unable to be persuaded of this? Because this enlightened truth can only be perceived as a result of the work of the breath of God. Christians possess the breath of God in their deepest inner core – in their heart – enabling them to perceive what is true to the facts concerning the unseen spiritual realm and be persuaded to the point of obedience. But ‘outsiders’ do not have the breath such that they remain in their ‘old humanity’ and prefer the darkness of ignorance that is in opposition to God and His Messiah.