Were continually in the temple - Until the day of Pentecost - that is, about ten days after. See Acts 2.
Praising and blessing God - Chiefly for the full proof that the Messiah had come; had redeemed them, and had ascended to heaven. "Thus the days of their mourning were ended." They were filled with happiness at the assurance of redemption, and expressed what every Christian should feel - fulness of joy at the glad tidings that a Saviour has died, and risen, and ascended to God; and an earnest desire to pour forth in the sanctuary prayers and thanksgivings to the God of grace for his mercy to a lost and ruined world.

Were continually in the temple - Especially till the day of pentecost came, when they received the promise, mentioned Luke 24:49.
Praising and blessing God - Magnifying his mercy, and speaking good of his name. Thus the days of their mourning were ended; and they began that life upon earth in which they still live in the kingdom of God. May the God of infinite love give the reader the same portion in time and in eternity, through the same glorious and ever-blessed Jesus! Amen and amen.
There are various subscriptions to this book in the MSS. and versions. The following are the principal.
Through the assistance of the Most High God, the Gospel of St. Luke the physician, the proclaimer of eternal life, is finished. Arab. - The most holy Gospel of Luke the Evangelist is completed. Syr. - The end of the holy Gospel according to Luke - written in Greek - published in Alexandria the Great, - in Troas, - in Rome, - in the confines of Achaia and Baeotia, - in Bithynia, - in Macedonia, - in the Italic (or Latin) character, fifteen years after the ascension of Christ.
It is likely, the word Amen was added by the Church, on the reading of this book; but there is no evidence that it was affixed by the evangelist. It is omitted by some of the best MSS. and versions.
It is evident that, at the conclusion of this Gospel, St. Luke passes very rapidly over a number of interesting circumstances related by the other evangelists, and particularly by St. John, concerning the last forty days of our Lord's sojourning on earth; but, to compensate for this, he has mentioned a variety of important particulars which the others have passed by, a list of which I think it necessary to subjoin. It seems as if the providence of God had designed that none of these evangelists should stand alone: each has his peculiar excellence, and each his own style and mode of narration. They are all witnesses to the truth in general; and each most pointedly to every great fact of the Gospel history. In each there is something new; and no serious reader ever finds that the perusal of any one supersedes the necessity of carefully consulting and reading the others. The same facts and doctrines are exhibited by all in different points of view, which renders them both impressive and interesting; and this one circumstance serves to fix the narrative more firmly in the memory. We should have had slighter impressions from the Gospel history, had we not had the narrative at four different hands. This variety is of great service to the Church of God, and has contributed very much to diffuse the knowledge of the facts and doctrines contained in this history. Parallel passages have been carefully studied, and the different shades of meaning accurately marked out; and the consequence has been, what the wisdom of God designed, the fuller edification of the faithful. It is not the business of a commentator to point out beauties in the composition of the sacred text. Many might be selected from the evangelists in general, and not a few from Luke, who not only tells a true story, but tells it well; especially when he has occasion to connect the different parts of the narration with observations of his own. But this is his least praise: from his own account we learn that he took the utmost pains to get the most accurate and circumstantial information relative to the facts he was to relate: see the note on Luke 1:3. While, therefore, he thus diligently and conscientiously sought for truth, the unerring Spirit of God led him into all truth. Even he who expected the revelation of the Almighty, and to be inspired by the Holy Spirit, that he might correctly, forcibly, and successfully proclaim the truth and righteousness of his Maker, must stand upon his watch, and set himself upon his tower, and watch to see what God would speak In him, Habakkuk 2:1. In a similar spirit we may expect the fruits of these revelations. He who carefully and conscientiously uses the means may expect the accomplishment of the end.
I cannot close these observations with a more profitable word than what is contained in that truly apostolic and sublime prayer for the second Sunday in Advent; and may he who reads it weigh every word in the spirit of faith and devotion! "Blessed God! who hast caused all holy scriptures to be written for our learning; grant that we may in such wise hear them, read, mark, learn, and inwardly digest them, that, by patience and comfort of thy holy word, we may embrace and ever hold fast the blessed hope of everlasting life, which thou hast given us in our Savior Jesus Christ!"
Now to him that loved us, and washed us from our sins in his own blood, and hath made us kings and priests unto God and his Father, to Him be glory and dominion for ever and ever! Amen.

And were continually in the temple,.... At the time of worship, at the hours of prayer, or of public service; and perhaps always privately in an upper room in it, where they, with others, met frequently, and continued, with one accord, in prayer and supplication; See Gill on Acts 1:14, a practice worthy of imitation, whether in the public or private way:
praising, and blessing God; for his Son Jesus Christ, who had died for their sins, was risen again for their justification, and was now ascended into heaven, to be their advocate there; and for all spiritual bless his Gospel to every creature.
Amen; so let him be praised, and blessed by all the saints, for all that is contained in this Gospel. In a manuscript copy of Beza's, it is added,
"the Gospel according to Saint Luke was published fifteen years after the ascension of Christ;''
See Gill on the title of this Gospel "Lu 1:1".

were continually in the temple--that is, every day at the regular hours of prayer till the day of Pentecost.