Radak, on Ps 144:20

“The Lord keepeth all them that love him; but all the wicked he will destroy.”

“The Lord preserves all those who love him (שומר ה' את כל אוהביו): He is good to those who fear Him, for they love Him without expectation of reward or fear of punishment, but purely out of love. He guards them so that no calamity will ever come upon them, and so it will be with all Israel in the future. But all the wicked he will destroy (ואת כל הרשעים ישמיד): There will not remain a wicked person forever, as it says: "And all the arrogant evildoers will be chaff; the day that is coming will set them ablaze."”

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