Psalm 74:17 Thou hast set all the borders of the earth: thou hast made summer and winter.
Gill Bible Commentary:
… thou hast made summer and winter; (see … Genesis 8:22 While the earth remaineth, seedtime and harvest, and cold and heat, and summer and winter, and day and night shall not cease.)
… the different frames of God’s people when under temptations, and clouds, and darkness, and when they enjoy peace and comfort;
… and the different state of the church, when affected with affliction, persecution, false doctrine, deadness, and formality, which is now greatly the case; …
but there is a summer coming, when it will be otherwise; (see … Luke 21:30 When they now shoot forth, ye see and know of your own selves that summer is now nigh at hand.)
Matthew Henry Bible Commentary:
The church silences her own complaints. What God had done for his people, as their King of old, encouraged them to depend on him. It was the Lord’s doing, none besides could do it. This providence was food to faith and hope, to support and encourage in difficulties.
The God of Israel is the God of nature. He that is faithful to his covenant about the day and the night, will never cast off those whom he has chosen. We have as much reason to expect affliction, as to expect night and winter. But we have no more reason to despair of the return of comfort, than to despair of day and summer. And in the world above we shall have no more changes.
Day and night, summer and winter, being counterchanged in the course of nature, throughout all the borders of the earth, we can expect no other than that trouble and peace, prosperity and adversity, should be, in like manner, counterchanged in all the borders of the church. We have as much reason to expect affliction as to expect night and winter. But we have then no more reason to despair of the return of comfort than we have to despair of day and summer.