Charles H. Spurgeon on Psalms 79:1

Whole Psalm. This Psalm is, in every respect, the pendant of Psalm 74. The points of contact are not merely matters of style (Ps 79:5, "how long for ever?" with Ps 74:1,10 79:10, edwy, with Ps 74:5 79:2, the giving over to the wild beasts, with Ps 74:19,14 79:13, the conception of Israel as of a flock, in which respect Psalm 79 is judiciously appended to Ps 78:70-72, with Ps 74:1 and also with Ps 74:19.) But the mutual relationships lie still deeper. Both Psalms have the same Asaphic stamp, both stand in the same relation to Jeremiah, and both send forth their complaints out of the same circumstances of the time, concerning a destruction of the Temple and of Jerusalem, such as only the age of the Seleucidae (1 Maccabees 1:31 3:45 2 Maccabees 8:3), together with the Chaldean period can exhibit, and in conjunction with a defiling of the Temple and a massacre of the servants of God, of the Chasîdîm (1 Maccabees 7:13 14:6), such as the age of the Seleucidae exclusively can exhibit. The work of the destruction of the Temple which was in progress in Ps 74:1-23, appears in Ps 79:1-13 as completed, and here, as in the former Psalm, one receives the impression of the outrages, not of some war, but of some persecution: it is straightway the religion of Israel for the sake of which the sanctuaries are destroyed and the faithful are massacred.—Franz Delitzsch.

Thy holy temple have they defiled. This was not only the highest degree of the enemy's inhumanity and barbarity, ...but also a calamity to the people of God never to be sufficiently deplored. For by the overthrow of the temple the true worship of God, which had been instituted at that temple alone, appeared to be extinguished, and the knowledge of God to vanish from among mankind. No pious heart could ponder this without the greatest grief. Mollerus.