John Trapp on Psalms 146:3

Verſ. 3 Put not your truſt in Princes] But in God alone; this being a principall peece of his praiſe: it is a kind of ſetting the Crown on his head. See Judg. 9.15. The word rendred Princes. ſignifieth liberall, bountifull ones, [non-Latin text not transcribed], ſo Princes would bee accounted? but there's no truſting to them without God, or againſt him.

Nor in the ſon of man] The arm of fleſh. See Pſa. 118.8, 9.

In whom there is no help] For themſelves. ſaith Aben-Ezra; much leſs for others.