The major addition to Matthew 6:25–26 is the addition of the information that at this point Jesus turns from the congregation and addresses the twelve. This suggests that some of the interpretations of these passages should relate to them and their mission rather than to the whole.
Nevertheless, there is a message that these verses, along with verses 26–31, are appropriate for all audiences.
The difficult reading is “take no thought.” That phrase seems to suggest that we don’t worry about such things and we simply accept what happens. That is not the message. There is nothing in any other teaching of Jesus that suggests that we do nothing but wait for God to take care of us. That is a violation of agency, if nothing else.
This set of verses, from 25 through 31, are all similar examples that lead up to the conclusion in verses 33 and 34.