Hath in these last days... — Better, at the end of these days spake unto us in a Son. The thought common to the two verses is “God hath spoken to man”; in all other respects the past and the present stand contrasted. The manifold successive partial disclosures of God’s will have given place to one revelation, complete and final; for He who spake in the prophets hath now spoken “in a Son.” The whole stress lies on these last words. The rendering “a Son” may at first cause surprise, but it is absolutely needed; not, “Who is the Revealer?” but, “What is He?” is the question answered in these words. The writer does not speak of a Son in the sense of one out of many; the very contrast with the prophets (who in the lower sense were amongst God’s sons) would be sufficient to prove this, but the words which follow, and the whole contents of this chapter, are designed to show the supreme dignity of Him who is God’s latest Representative on earth. The prophet’s commission extended no farther than the special message of his words and life; “a Son” spoke with His Father’s authority, with complete knowledge of His will and purpose. It is impossible to read these first lines (in which the whole argument of the Epistle is enfolded) without recalling the prologue of the fourth Gospel. The name “Word” is not mentioned here, and the highest level of St. John’s teaching is not reached; but the idea which “the Word” expresses, and the thought of the Only Begotten as declaring and interpreting the Father (John 1:18; also John 14:10; John 14:24) are present throughout. There is something unusual in the words, “at the end of these days.” St. Peter speaks of the manifestation of Christ “at the end of the times” (1 Peter 1:20); and both in the Old Testament and in the New we not unfrequently read “at the end (or, in the last) of the days.” (See 2 Peter 3:3; Jude 1:18; Numbers 24:14; Daniel 10:14, &c.) The peculiarity of the expression here lies in “these days.” The ages preceding and following the appearance of Messiah are in Jewish writers known as “this world” (or, age) and the “coming world” (or, age); the “days of Messiah” seem to have been classed sometimes with the former, sometimes with the latter period; but “the end of these days” would be understood by every Jewish reader to denote the time of His appearing.
Whom he hath appointed. — Better, whom He appointed: in the divine counsels He was constituted “Heir of all things.” The clauses which follow describe the successive steps in the accomplishment of this purpose. The words have often been understood as referring to the Son’s essential Lordship: as Eternal Son He is and must be Heir of all. But this explanation is less consistent with the word “appointed,” with the strict significance of “Heir,” and with the development of the thought in the following verses; and it is on all grounds more probable that in these words is expressed the great theme of the Epistle, the consummation of all things in the Christ.
By whom. — Rather, through whom. So in John 1:3 we read that all things came into being through the Word; and in Colossians 1:16, “All things have been created through Him.” In this manner Philo repeatedly describes the creative work of the Logos. Here, however, “this mediatorial function has entirely changed its character. To the Alexandrian Jew it was the work of a passive tool or instrument; but to the Christian Apostle it represented a co-operating agent” (Lightfoot on Colossians 1:16).
The worlds. — A word of very common occurrence in the New Testament as a designation of time occurs in two passages of this Epistle (here and in Hebrews 11:3) where the context shows more than “age” to be intended. Under time is included the work that is done in time, so that “the ages” here must be (to quote Delitzsch’s words) “the immeasurable content of immeasurable time.” “Also” may seem an unnecessary addition, but (almost in the sense accordingly) it points to creation as the first step towards the fulfilment of the design expressed in the preceding clause.