The sun and moon will grow dark, and the stars will no longer shine.
I have already explained this verse in chapter 2: the Prophet, as we then stated, describes in these words the terrible judgment of God, in order to shake off the indifference of men, who carelessly hear and despise all threatening, except the Lord storms their hearts.
What the psalmist had long before ordered to be said among the heathen (Psa 96:10) the prophet here will have in like manner to be published to all nations, That the Lord reigns, and that he comes, he comes to judge the earth, as he had long been judging in the earth.
Commenting on Joel 3:9-17
The sun and moon shall be darkened,.... Both the politic and ecclesiastic state of antichrist shall be ruined and destroyed; it shall "fare" with Rome Papal as it did with Rome Pagan, at the time of its dissolution; see Rev 6:12; and the stars shall withdraw their shining: antichristian princes and nobles in the civil state, and the clergy of all ranks in the church state, shall lose their glory.