Luke 12:26

If ye then be not able to do that thing which is least, why take ye thought for the rest?

If then you aren't able to do even the least things, why are you anxious about the rest?

If then ye are not able to do even that which is least, why are ye anxious concerning the rest?

If, then, ye are not able for the least -- why for the rest are ye anxious?

So if you cannot do such a small thing, why do you worry about the rest?