Jeremiah 8:20
"The harvest is past, the summer is ended, and we are not saved."
Cross References (ranked by relevance)
Luke 13:25
When once the master of the house is risen up, and hath shut to the door, and ye begin to stand without, and to knock at the door, saying, Lord, Lord, open unto us; and he shall answer and say unto you, I know you not whence ye are:
Proverbs 10:5
He that gathereth in summer is a wise son: but he that sleepeth in harvest is a son that causeth shame.
Luke 19:44
And shall lay thee even with the ground, and thy children within thee; and they shall not leave in thee one stone upon another; because thou knewest not the time of thy visitation.