Isaiah 40:6-8 (NKJV)
All flesh is grass, and all its loveliness is like the flower of the field. The grass withers, the flower fades, because the breath of the Lord blows upon it; surely the people are grass. The grass withers, the flower fades, but the word of our God stands forever.

Hebrews 4:12-13 (NKJV)
For the word of God is living and powerful, and sharper than any two-edged sword, piercing even to the division of soul and spirit, and of joints and marrow, and is a discerner of the thoughts and intents of the heart. And there is no creature hidden from His sight, but all things are naked and open to the eyes of Him to whom we must give account.

Matthew 6:25-34 (NKJV)
...if God so clothes the grass of the field...will He not much more clothe you...Therefore do not worry, saying, ‘What shall we eat...drink...wear...your heavenly Father knows that you need all these things. But seek first the kingdom of God and His righteousness, and all these things shall be added to you.