The new oratorio met with surprising success. In the first place, Handel had given up the subscription system, and opened the theatre to all comers. The relief produced by the victory of Culloden had no doubt encouraged the general public to spend more money on entertainments; the Duke of Cumberland was a popular hero, and, through the Occasional Oratorio, Handel's name had come to be associated with him. Judas was naturally patronised by the court and by the Duke himself, who had made a handsome present to Morell in recognition of his literary laurels. And a new class of enthusiasts appeared in the shape of the Jews, we are told, who were attracted by the glorification of a national hero of their own. We do not hear much of the Jewish community in London in the days of Handel, and it cannot have been a very large one, but they appear to have been worth Handel's consideration. It may be mentioned that Handel's early librettist in London, Nicolo Haym, must have been a Jew, to judge from his name. Handel, at any rate, was sufficiently impressed to ask Morell to find another Jewish subject for his next oratorio; this was Alexander Balus, produced the following year.

The Italian opera party had this year engaged Gluck as a composer, and he too celebrated the Duke of Cumberland's achievements with an opera, La Caduta dei Giganti (January 5), which was a complete failure. It must have been put together in a hurry, for all of the "favourite songs" in it, published by Walsh (and no other record of the music remains), were taken from earlier operas of Gluck's; in any case they are poor stuff, and from Burney's description of the singers it is no wonder that the opera had no success. Gluck called on Handel, who told someone that he knew no more of counterpoint than his cook. Gluck was just under thirty, Handel just over sixty, and one can understand Handel's attitude; in any case he gave him some plain and practical advice as to how to please an English audience, which was not much use to Gluck, as he never visited this country again. Handel was quite right in his criticism, for Gluck was always very clumsy in his technique; and, at any rate, Gluck found him friendly enough and spoke of him forty years later with the profoundest respect. It is probable that Gluck heard Judas, as he was still in London in April.

A significant indication of the new popularity which Handel had acquired was the production of a pasticcio, at the Italian Opera in November 1747, made up chiefly from the operas of Handel; but the experiment was not repeated. In the autumn of 1748 a company of Italian comic-opera singers came over to London; they brought an entirely new type of entertainment, and after their success Handelian opera was buried for ever.

Alexander Balus was not one of Handel's popular works; Joshua (March 23, 1748) is now pretty well forgotten, but was a great attraction when new, mainly because it contained "See the Conquering Hero," which was afterwards transferred to Judas Maccabaeus. "What the English like is something that they can beat time to," said Handel to Gluck. He agreed with Hawkins in not caring very much for it himself, but added, "you will live to see it a greater favourite with the people than my other fine things." Joshua contains two "borrowings," one from Handel's own opera Riccardo, and another from Gottlieb Muffat.

The productions of the next year (1749) were Susanna (February 10) and Solomon (March 17); it is not known who wrote their libretti, though Solomon has been tentatively ascribed to Morell. Susanna was remarkably successful, perhaps on account of its story, which has always been a favourite with the painters of the later Renaissance. One can understand Lady Shaftesbury's saying, "I believe it will not insinuate itself so much into my approbation as most of Handel's performances do, as it is in the light operatic style." Solomon was a complete contrast, with its magnificent scenes of oriental pageantry.

The Peace of Aix-la-Chapelle (October 1748) had no doubt contributed, as the victory of Culloden did, to make people more inclined to enjoy the pleasures of life, with beneficial results to the organisers of music and drama. The King ordered a grand celebration of the event to take place on April 27, 1749, and preparations for it were begun as early as the preceding November. The famous theatrical architect Servandoni was commissioned to design an elaborate entertainment of fireworks on a colossal scale to be let off in the Green Park, accompanied by the music of Handel. The Fireworks Music was scored for fifty-six wind instruments. A rehearsal of it (without fireworks) was held at Vauxhall Gardens a week before, at half a crown admission, and it is said to have been attended by a crowd of twelve thousand persons. At the actual performance the fireworks were a disastrous failure, owing to various accidents, but Handel's music, accompanied by the firing of ordnance, was the real event of the evening. A month later Handel repeated the music at the Foundling Hospital, along with selections from Solomon, and a new work, composed for the occasion, known as the Foundling Anthem. His next act of generosity was to present the hospital with an organ, which he inaugurated on May 1, 1750, with a performance of Messiah. Henceforth the performance of Messiah at the Foundling Hospital for the benefit of the institution became an annual event, and it was this charitable association which really secured the work its subsequent popularity.

Handel's next oratorio, Theodora (March 16, 1750), came out at a bad moment, for a series of earthquakes were being felt in London, with the result that many people took refuge in the country, and those who stayed behind were reluctant to go to the theatre. The blame for the neglect which has always overtaken Theodora has been very unjustly laid on Morell. Handel himself, remembering the successes of Judas and Susanna, observed to the poet, "The Jews will not come to it, because it is a Christian story; and the ladies will not come, because it is a virtuous one." Theodora was always Handel's favourite among his oratorios, and he considered the chorus, "He saw the Lovely Youth," to be far beyond anything in Messiah. None the less, the theatre was half empty when Theodora was given. "Never mind," said Handel, with grim humour, "the music will sound all the better."

An old acquaintance reappeared this year in London in the shape of Cuzzoni, who had continued her quarrelsome career at Venice, Vienna, and Stuttgart. An unsuccessful benefit concert was given for her, at which Giardini the violinist made his first appearance in London. Handel engaged her to sing in Messiah at the Foundling Hospital, but her voice was gone. She was arrested for debt and bailed out by the Prince of Wales; after a few years in Holland, where she was again in prison, she died in destitution at Bologna.

In the summer Handel went to Germany for the last time. Nothing is known of his movements there beyond the fact that on the journey out he met with a carriage accident between the Hague and Haarlem. He was seriously injured, but was stated in a London paper of August 21 to be out of danger. Nor is it known when he returned; we have no further news of him until in January he began work on Jephtha. Morell says that he himself wrote Jephtha in 1751, but, as Handel had completed the first act on February 2, it is probable that Morell, like Jennens, supplied him with the words in instalments.

The composition of the music suffered various interruptions owing to the failure of Handel's eyesight, and possibly to a return of mental disorder (Streatfeild). He was able to play the organ at the Foundling Hospital in May, and directly afterwards went for a short visit to Cheltenham, returning to London on June 13. He resumed work on Jephtha, and finished it on August 30. It was some time this year (the precise date is unknown) that he consulted Samuel Sharp, a surgeon of Guy's Hospital, who told him that he was suffering from gutta serena, and that freedom from pain in the visual organs was all that he had to hope for during the remainder of his days. It was a severe shock, especially to a man whose general physical and mental health was already undermined, and it is no wonder that Handel began to give way to periods of profound depression. The condition of Handel's eyes, and of his hand as well, may be clearly observed in the autograph of Jephtha, and it may be noted that here he again reverted to the process of "borrowing"—this time from five Masses by Habermann, a composer twenty years his junior, published in 1747.