Shared ground
Psalm 135:15–18 contrasts Israel’s God with the idols worshiped by other peoples. The idols may be made of impressive materials (silver and gold), but the psalm stresses a basic fact: they are made by human hands.
The poem presses the contrast by listing body parts that suggest life—mouths, eyes, and ears—then denying the actions those parts are for: they cannot speak, see, or hear. The line “there is no breath in their mouths” underlines that the issue is not stubborn silence but lifelessness.
The closing sentence applies the critique to people: those who make idols, and everyone who trusts in them, “will be like them.” The passage’s clear contribution is that trust is not neutral; giving your confidence to something lifeless tends to make you lifeless in response—less able to speak wisely, perceive truly, or listen well. (A similar critique appears in Psalm 115:4–8.)