John Calvin Reformed @genevareformer

This has the same object with the former doctrine. Believers ought to rely on God’s fatherly care, to expect that he will bestow upon them whatever they feel to be necessary, and not to torment themselves by unnecessary anxiety. He forbids them to be anxious, or, as Luke has it, to seek, that is, to seek in the manner of those who look around them...

Matthew Henry Presbyterian @wholebiblehenry

There is scarcely any one sin against which our Lord Jesus more largely and earnestly warns his disciples, or against which he arms them with more variety of arguments, than the sin of disquieting, distracting, distrustful cares about the things of life, which are a bad sign that both the treasure and the heart are on the earth; and therefore he thus largely insists upon it. Here is, I.

Commenting on Matthew 6:25-34

John Gill Reformed Baptist @doctorgill

For after all these things do the Gentiles seek,.... Or "the nations of the world", as in Luk 12:30. The Syriac reads it so here: the phrase, "the nations of the world", is used of the Gentiles, in distinction from the Israelites, thousands of times in the Jewish writings; it would be endless to give instances.