Genesis 8: 22 (NRSV)
 As long as the earth endures, seedtime and harvest, cold and heat, summer and winter, day and night, shall not cease.
What can you count on? Day and night, cold and heat, and your taxes?
What God has promised is there will be times of labor and times of harvest, and that He is not going anywhere. The seasons may change, but God never does. So when you need Him, He will always be here.