By A.E. Waite (1911), tarot card illustrations by Pamela Colman Smith (1911)
Change of position, renewal, outcome. Another account specifies total loss though lawsuit.
Divinatory Meanings – Reversed
Weakness, pusillanimity, simplicity; also deliberation, decision, sentence.
I have said that this symbol is essentially invariable in all Tarot sets, or at least the variations do not alter its character. The great angel is here encompassed by clouds, but he blows his bannered trumpet, and the cross as usual is displayed on the banner. The dead are rising from their tombs–a woman on the right, a man on the left hand, and between them their child, whose back is turned. But in this card there are more than three who are restored, and it has been thought worth while to make this variation as illustrating the insufficiency of current explanations. It should be noted that all the figures are as one in the wonder, adoration and ecstacy expressed by their attitudes. It is the card which registers the accomplishment of the great work of transformation in answer to the summons of the Supernal–which summons is heard and answered from within.
Herein is the intimation of a significance which cannot well be carried further in the present place. What is that within us which does sound a trumpet and all that is lower in our nature rises in response–almost in a moment, almost in the twinkling of an eye? Let the card continue to depict, for those who can see no further, the Last judgment and the resurrection in the natural body; but let those who have inward eyes look and discover therewith. They will understand that it has been called truly in the past a card of eternal life, and for this reason it may be compared with that which passes under the name of Temperance.
20. The Last judgment. I have spoken of this symbol already, the form of which is essentially invariable, even in the Etteilla set. An angel sounds his trumpet per sepulchra regionum, and the dead arise. It matters little that Etteilla omits the angel, or that Dr. Papus substitutes a ridiculous figure, which is, however, in consonance with the general motive of that Tarot set which accompanies his latest work. Before rejecting the transparent interpretation of the symbolism which is conveyed by the name of the card and by the picture which it presents to the eye, we should feel very sure of our ground. On the surface, at least, it is and can be only the resurrection of that triad–father, mother, child-whom we have met with already in the eighth card. M. Bourgeat hazards the suggestion that esoterically it is the symbol of evolution–of which it carries none of the signs. Others say that it signifies renewal, which is obvious enough; that it is the triad of human life; that it is the “generative force of the earth… and eternal life.” Court de Gebelin makes himself impossible as usual, and points out that if the grave-stones were removed it could be accepted as a symbol of creation.
By S. L. MacGregor Mathers, c 1888
The Last Judgment – Renewal, Result, Determination of a Matter.
Divinatory Meanings – Reversed
Postponement of Result, Delay, Matter re-opened later.
Symbolism of the Keys
The Last Judgment – An Angel in the heavens blowing a trumpet, to which a standard with a cross thereon is attached. The Dead rise from their tombs. It signifies Renewal, Result.
General Book of the Tarot
By A. E. Thierens, 
Description and Meaning
If Saturn denotes ‘death’ and the grave, what more natural than that his counterpart Jupiter should stand for the resurrection from the grave? While Saturn, Lord of the mineral kingdom, is held to ‘kill’ by his crystallising effect, Jupiter, Lord of the vegetable kingdom and of all that grows and expands and evolves, leading up to sublimation and elevation, abstraction, etc., afterwards, is first the emblem and function of organic life, later on also those of psychic and spiritual life above the material existence, barren and naked, from which it consequently brings deliverance. The latter meaning is chiefly viewed when symbolising this principle in the card of the Last Judgment. “An angel sounds his trumpet per sepulchra regionum and the dead arise.” (Waite) Some people say “that it signifies renewal, which is obvious enough . . .” and “that it is the generative force of the earth and eternal life.” (Waite) The latter fairly covers our definition of Jupiter’s function. Again Waite further mentions, that it “is the card which registers the accomplishment of the great work of transformation.” Which is also in the line of Jupiter, Io Pater, ‘Our Father that is in the Heavens.’ And every great work needs his co-operation; there is no important or great work done in this world without Jupiter, the planet of ideals playing a prominent rôle in it. Ideals, that “are the angel part of us,” as Zanoni tells his disciple. So this card stands for ideals, religious, social or any other and for the elevating effect they have on man; for ideas and leading motives, aspirations, etc., consequently for generalisation, illumination, dispersion, elevation, for all that is honourable on one hand but also for illusions or vain aspirations on the other hand. It is the sign of deliverance from narrow thought and hampering conditions in the soul as well as in the body and in life.
The card is identified with the Hebrew letter Resh, which “is the head of man, and it is therefore associated with the idea of all that possesses in itself an original, determined movement. It is the absolute sign of motion, good or bad, and expresses the renewal of things with regard to their innate power of motion.”–“Return to the divine world.”–“Vegetable life.” (Papus) Yes. We might say: thought-power and the idea of motion which it implies and imparts. Jupiter was the first and chief of the Gods, Theoi, Movers.
By Paul Foster Case (1933)
20, Le Jugement
Corresponds, through the letter Shin, with the element of Fire. Is probably also related to the planet Pluto, and here it may be noted that in certain relations of Tarot symbolism and combination, this Key is definitely associated with the sign Scorpio, which, some astrologers believe, may be the sign ruled by Pluto.
In divination this card often represents the operation of under-currents of force not easily determinable, or the appearance of unexpected elements bearing upon the Querant’s problem.
A favorable outcome to the matter concerning which the operation is made. Often the renewal of hopes and wishes, or the betterment of conditions after a period of depression.
Especially in legal matters, the decision goes against the Querant, and the outcome is beyond his power to change. Sometimes a card of inheritance.
More information on Judgement Tarot card.