Tafsiran Mazmur 49:2: Rashi, Metzudat David & Ibn Ezra

Hear this, all you peoples Because this psalm is based on people who rely on their riches, he says, “all you peoples,” for they all require admonition.

"All ye people" - because everybody needs this lesson.

"Listen" - to the message he gives, that addresses all in whose nostrils G-d (lit. hashem, the name) blew the breath of life. Therefore, "listen all who dwell on Earth".

earth Heb. חלוד. That [term] is [used to describe] the earth because it is old and rusty (חלודה), rodile in Old French, rust, rouille in modern French. But our Sages explained that it is because of the weasel (חֻלְדָה), which frequents the dry land but is not found in the sea, for the Rabbis taught (Hul. 127a): Whatever is on the dry land is found in the sea, except the weasel.