For everything there is a season, and a time for every matter under heaven:
a time to be born, and a time to die; a time to plant, and a time to pluck up what is planted;
a time to kill, and a time to heal; a time to break down, and a time to build up;
a time to weep, and a time to laugh; a time to mourn, and a time to dance;
a time to throw away stones, and a time to gather stones together; a time to embrace, and a time to refrain from embracing;
a time to seek, and a time to lose; a time to keep, and a time to throw away;
a time to tear, and a time to sew; a time to keep silence, and a time to speak;
a time to love, and a time to hate; a time for war, and a time for peace.
What gain have the workers from their toil?
I have seen the business that God has given to everyone to be busy with.
He has made everything suitable for its time; moreover he has put a sense of past and future into their minds, yet they cannot find out what God has done from the beginning to the end.
I know that there is nothing better for them than to be happy and enjoy themselves as long as they live;
moreover, it is God's gift that all should eat and drink and take pleasure in all their toil.
I know that whatever God does endures forever; nothing can be added to it, nor anything taken from it; God has done this, so that all should stand in awe before him.
That which is, already has been; that which is to be, already is; and God seeks out what has gone by.
References for Ecclesiastes 3:15