Previously God spoke indirectly, but now he speaks directly, through his Son. All of God’s word comes to us with divine authority, whether it is spoken through intermediaries or not, but we attach special significance to the message we have received from the Son of God himself.
How can we not believe that Christ is sincere when he invites us to come to him for mercy? His sincerity is demonstrated by his leaving the courts of heaven to come into this sin-infested world. Why would he pay such a price to deliver a message which he did not intend to make good on?
This is the last period of earth’s history. This present era will end with the return of Jesus Christ in power and in glory with the consummation of all things at his appearing. There will be no further alterations of the church while time continues. The church will continue until Christ returns and the New Testament teaches how it should worship, how it should be governed, how it should work and serve. In the Jewish era of ‘the church’ was a mixed multitude of saints and sinners within Israel, which was a state and a church. The members of that congregation in ancient times consisted of a minority who truly love the Lord and a majority who were just formal worshippers. But in the New Testament there is a new order, we are a regenerated church as far as we can ensure. People should only join the church if they can give testimony of having been converted and brought to Jesus Christ. These are the last days; there will be no further additions to the Scripture. That is why what the Charismatics do is very dangerous: believing that people can receive words of knowledge and words of revelation and words of wisdom in these days. The Church of Rome went off the rails in a similar way. They started adding rites and ceremonies of their own devising, and very quickly they went away from the truth and they lost it. We are called to guard and defend the Scripture, which is complete and finished and sufficient for all our needs. That is what the writer of Hebrews under inspiration says: ‘Hath in these last days spoken unto us by his Son.’ Christ spoke and the apostles recorded everything that he said and we are led into all truth, so that after the generation of the apostles there is no more truth.
What are the last days? They are the final age in earth’s history when God’s revelation has reached its final form and his plan for earth is nearing completion. There are no more eras: this is the last era – ‘in these last days’. The next stage in God’s plan which his people can expect is the eternal age.
There are broadly two views of the Christ’s Sonship. The biblical view is that he is eternally the Son of God. There is however, a view which has been adopted by various Christians down the ages that this speaks only of incarnational Sonship, and the term Son of God is only really relevant to Christ after his human birth. That is quite incorrect and misses something extremely important. From John 3:16 it is quite clear that he was the only begotten Son when he was given. The Father did not give the second person of the Trinity to be the only Son at his incarnation; he already was the only Son. Similarly in verse 17 you see he is already the Son even as he is appointed and even as he is sent. John 3:16 doesn't make anything like as much sense, if you take that away. The whole idea is that God so loved that he sent his only Son, one who was so close to him. What about the words ‘his only begotten Son’? Does that suggest that there was a time when he was not the Son? No, it doesn't mean that. Quite apart from the fact that many nowadays prefer to translate it ‘one and only Son’ – and that may well be right – it doesn't mean begotten in the sense of being born newly. You might say, ‘the only existing Son’. If he is described as the Son of God, that means he is the same as God the Father, the same essence, equally divine. So he is eternally begotten, eternally brought about, which is a great mystery, but there never was a time when he was not. The idea of Christ being God's Son draws attention to his closeness to the Father. In olden times you very often had a king whose son was co-regent, or ruler, with him. The son was no longer a boy; he was not subservient; he was not under authority.
It’s a wonderful thing that we have, at this end point of history, tremendous historic confessions of faith. Crowning them all are the little group of 17th-century confessions of faith: the Westminster Confession, the so-called Baptist Confession, the Congregationalists or Independent Savoy Confession, largely compiled by John Owen. The amount of scriptural consideration and deep theological thought that went into those confessions is unsurpassed in all history. Historic Protestantism in its better form rests on the Bible but also on these confessions of faith. They give us a structure of doctrines drawn from the Scripture. At times in church history people haven't had that, or haven't taken them seriously. In the 19th century there was the emergence of the Brethren movement, and the Brethren, although often very accomplished in Scripture, have never had much enthusiasm for confessions. At a very early stage the movement divided many times. One such division resulted from a person who succeeded JN Darby, who came up with this doctrine of incarnational Sonship. There is a certain amount of confusion about it because he seems sometimes to teach the eternal Sonship, but mainly he expounds incarnational Sonship. Wasn’t he warned that that was really heretical? Wasn't there some mechanism to correct him? No, there was no mechanism, because they didn't have much regard for the confessions of faith, which would have shown them what at least was orthodox and normal to understand.