That conception of the purpose of the book seems to me to have light cast upon it by, and to explain, the singular abruptness of its conclusion, which must strike every reader. No doubt it is quite possible that the reason why the book ends in such a singular fashion, planting Paul in Rome, and leaving him there, may be that the date of its composition was that imprisonment of Paul in the Imperial City, in a part of which, at all events, we know that Luke was his companion. But, whilst that consideration may explain the point at which the book stops, it does not explain the way in which it stops. The historian lays down his pen, possibly because he had brought his narrative up to date. But a word of conclusion explaining that it was so would have been very natural, and its absence must have had some reason. It is also possible that the arrival of the Apostle in the Imperial City, and his unhindered liberty of preaching there, in the very centre of power, the focus of intellectual life, and the hot-bed of corruption for the known world, may have seemed to the writer an epoch which rounded off his story. But I think that the reason for the abruptness of the record's close is to be found in the continuity of the work of which it tells a part. It is the unfinished record of an incomplete work. The theme is the work of Christ through the ages, of which each successive depository of His energies can do but a small portion, and must leave that portion unfinished; the book does not so much end as stop. It is a fragment, because the work of which it tells is not yet a whole. If, then, we put these two things--the beginning and the ending of the Acts--together, I think we get some thoughts about what Christ began to do and teach on earth; what He continues to do and teach in heaven; and how small and fragmentary a share in that work each individual servant of His has. Let us look at these points briefly. I. First, then, we have here the suggestion of what Christ began to do and teach on earth. Now, at first sight, the words of our text seem to be in strange and startling contradiction to the solemn cry which rang out of the darkness upon Calvary. Jesus said, 'It is finished!' and 'gave up the ghost.' Luke says He 'began to do and teach.' Is there any contradiction between the two? Certainly not. It is one thing to lay a foundation; it is another thing to build a house. And the work of laying the foundation must be finished before the work of building the structure upon it can be begun. It is one thing to create a force; it is another thing to apply it. It is one thing to compound a medicine; it is another thing to administer it. It is one thing to unveil a truth; it is another to unfold its successive applications, and to work it into a belief and practice in the world. The former is the work of Christ which was finished on earth; the latter is the work which is continuous throughout the ages.