en_tn_condensed/psa/126/002.md

our mouths were filled with laughter

Laughing is spoken of as if their mouths were a container and their laughter was in it. It can be made clear that this laughter was a response to their joy. Alternate translation: "we laughed for joy" (See: rc://en/ta/man/translate/figs-metaphor and rc://en/ta/man/translate/figs-explicit)

our tongues with singing

The verbs "were filled" can be stated clearly. Singing is spoken of as if their tongues were containers and singing was in them. Alternate translation: "our tongues were filled with singing" or "we sang songs of joy" (See: rc://en/ta/man/translate/figs-ellipsis and rc://en/ta/man/translate/figs-metaphor)

they said among the nations

"the people of the nations said among themselves." The pronoun is used before introducing what it references. This is very unusual.