Luke 12:26
"If ye then be not able to do that thing which is least, why take ye thought for the rest?"
Cross References (ranked by relevance)
1 Peter 5:7
Casting all your care upon him; for he careth for you.
Psalm 39:6
Surely every man walketh in a vain shew: surely they are disquieted in vain: he heapeth up riches, and knoweth not who shall gather them.
Ecclesiastes 7:13
Consider the work of God: for who can make that straight, which he hath made crooked?