1 John 2 and Apostasy

I have often made reference to this passage, insisting (contrary to the exponents of 'once saved always saved' that it does not negate the concept of real apostasy. The argument is made that so-called apostates aren't really so, because like the figures mentioned in 1 John 2.19, they were never actually part of the Church. And so when a person seemingly 'falls away', they did not in fact fall away, but merely manifested their unregenerate state. In other words they were never 'real' Christians.

Distorting Revelation 3: Theology Overriding Scripture (II)

Consider Colossians 1 – Paul speaks of their faith in Christ, love of the saints, the hope laid up for them in heaven which was heard in the gospel, which has come to them and brought forth fruit (specifically in them). He says they have known the grace of God in truth and that they have love in the Spirit. He exhorts them to knowledge, wisdom, and spiritual understanding, to walk worthy of the Lord, fruitful in every good work. Once again he speaks of them increasing in knowledge – as these concepts of work, fruit, and knowledge go together.