Rashi, on Isa 51:16

“I have put my words in thy mouth, and have protected thee in the shadow of my hand, that thou mightest plant the heavens, and found the earth: and mightest say to Sion: Thou art my people.”

“to plant the heavens to preserve the people about whom it was said that they shall be as many as the stars of the heavens [from Jonathan]. and to found the earth And to found the congregation about whom it is said that they shall be as many as the dust of the earth [from Jonathan].”

Imported from an open dataset — not yet checked against the printed edition.