## the king ##

David is speaking about himself. AT: "I, the king of Israel" UDB

## swears by him ... proud of him ##

The word "him" refers to "God".

## but the mouth of those who speak lies will be stopped up ##

AT: "but God will silence the mouths of liars" (See:  [[rc://en/ta/man/translate/figs-activepassive]])

## the mouths of those who speak lies ##

AT: "liars" (See: [[rc://en/ta/man/translate/figs-synecdoche]])