Isaiah 40:6-8 New International Version (NIV)
6 A voice says, “Cry out.”
And I said, “What shall I cry?”
“All people are like grass,
and all their faithfulness is like the flowers of the field.
7 The grass withers and the flowers fall,
because the breath of the Lord blows on them.
Surely the people are grass.
8 The grass withers and the flowers fall,
but the word of our God endures forever.”
Ecclesiastes 3:9-15 New International Version (NIV)
9 What do workers gain from their toil? 10 I have seen the burden God has laid on the human race. 11 He has made everything beautiful in its time. He has also set eternity in the human heart; yet[a] no one can fathom what God has done from beginning to end. 12 I know that there is nothing better for people than to be happy and to do good while they live. 13 That each of them may eat and drink, and find satisfaction in all their toil—this is the gift of God. 14 I know that everything God does will endure forever; nothing can be added to it and nothing taken from it. God does it so that people will fear him.
15 Whatever is has already been,
and what will be has been before;
and God will call the past to account.