James 1:10

but a rich man should rejoice in being brought low, for like flowers among the herbage rich men will pass away.

1 Peter 1:24

"All mankind resemble the herbage, and all their beauty is like its flowers. The herbage dries up, and its flowers drop off;

1 Corinthians 7:31

and those who use the world as not using it to the full. For the world as it now exists is passing away.

Matthew 5:3

"Blessed are the poor in spirit, for to them belongs the Kingdom of the Heavens.

Matthew 6:30

And if God so clothes the wild herbage which to-day flourishes and to-morrow is thrown into the oven, is it not much more certain that He will clothe you, you men of little faith?

Philippians 3:8

Nay, I even reckon all things as pure loss because of the priceless privilege of knowing Christ Jesus my Lord. And for His sake I have suffered the loss of everything, and reckon it all as mere refuse, in order that I may win Christ and be found in union with Him,

1 Timothy 6:17

Impress on those who are rich in the present age that they must not be haughty nor set their hopes on riches--that unstable foundation--but on God who provides us richly with all things for our enjoyment.

James 4:14

when, all the while, you do not even know what will happen to-morrow. For what is the nature of your life? Why, it is but a mist, which appears for a short time and then is seen no more.

1 John 2:17

And the world, with its cravings, is passing away, but he who does God's will continues for ever.

Treasury of Scripture Knowledge

Summary

But the rich, in that he is made low: because as the flower of the grass he shall pass away.

General references

Bible References

In

Matthew 5:3
"Blessed are the poor in spirit, for to them belongs the Kingdom of the Heavens.
Philippians 3:8
Nay, I even reckon all things as pure loss because of the priceless privilege of knowing Christ Jesus my Lord. And for His sake I have suffered the loss of everything, and reckon it all as mere refuse, in order that I may win Christ and be found in union with Him,
1 Timothy 6:17
Impress on those who are rich in the present age that they must not be haughty nor set their hopes on riches--that unstable foundation--but on God who provides us richly with all things for our enjoyment.

Because

James 4:14
when, all the while, you do not even know what will happen to-morrow. For what is the nature of your life? Why, it is but a mist, which appears for a short time and then is seen no more.
Matthew 6:30
And if God so clothes the wild herbage which to-day flourishes and to-morrow is thrown into the oven, is it not much more certain that He will clothe you, you men of little faith?
1 Corinthians 7:31
and those who use the world as not using it to the full. For the world as it now exists is passing away.
1 Peter 1:24
"All mankind resemble the herbage, and all their beauty is like its flowers. The herbage dries up, and its flowers drop off;
1 John 2:17
And the world, with its cravings, is passing away, but he who does God's will continues for ever.

General references

2 Corinthians 10:17
But "whoever boasts, let his boast be in the Lord."