en_tn_condensed/psa/090/004.md

For a thousand years in your sight are as yesterday when it is past, and as a watch in the night

The writer means that a long period of time seems like a short period of time to God. Alternate translation: "You consider a thousand years the same as one day in the past, or as a few short hours in the night" or "Even a thousand years is not a long time to you" (See: rc://en/ta/man/jit/figs-simile)

a thousand years

"1,000 years" (See: rc://en/ta/man/jit/translate-numbers)

in your sight

Here sight represents judgment or evaluation. Alternate translation: "to you" (See: rc://en/ta/man/jit/figs-metaphor)