Revelation of John 9:13-15

Verse 13

The four horns of the golden altar - This is another not very obscure indication that the Jewish temple was yet standing.
Verse 14

Loose the four angels - These four angels bound - hitherto restrained, in the Euphrates, are by some supposed to be the Arabs, the Saracens, the Tartars, or the Turks; by others, Vespasian's four generals, one in Arabia, one in Africa, one in Alexandria, and one in Palestine.
Verse 15

For an hour, and a day, and a month, and a year - We have in this place a year resolved into its component parts. Twenty-four hours constitute a day, seven days make a week, four weeks make a month, and twelve months make a year. Probably no more is meant than that these four angels were at all times prepared and permitted to inflict evil on the people against whom they had received their commission. There are some who understand these divisions of time as prophetical periods, and to these I must refer, not professing to discuss such uncertainties.
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