William Burkitt on Mark 13:24

Our Saviour goes on in figurative expressions, to set forth the calamities that should befall the Jewish nation immediately after Jerusalem's destruction. The sun shall be darkened; that is, all their glory and excellency shall be eclipsed, all their wealth and prosperity shall be laid waste, their whole government, civil and ecclesiastical, destroyed; and such marks of misery found upon them, as never were seen upon a people. Those that apply this to the general judgment, understand the word literally, that the sun and moon will then have their influences suspended; that the holy angels will be sent forth to gather the elect from all quarters of the world, with the sound of the trumpet, says St. Matthew. Prfobably, as there was an audible sound of a trumpet at the giving of law, so three shall be the like sound of a trumpet, when Christ shall summon the world to judgment, for transgressing of that law. A joyful sound will this be to the friends of Christ; a doleful, dreadful sound in the ears of his enemies.