## Why not? ##

"Why could they not attain righteousness?" (See: [[rc://en/ta/man/translate/figs-rquestion]])

## by works ##

"by trying to do things that would please God" (see UDB) or "by keeping the Law" (See: [[rc://en/ta/man/translate/figs-explicit]])

## stone of stumbling ##

"stone over which people stumble"

## as it has been written ##

"as Isaiah the prophet wrote"  (See: [[rc://en/ta/man/translate/figs-explicit]])

## Zion ##

A place name. (See: [[rc://en/ta/man/translate/translate-names]])

## believes in it ##

Because the stone stands for a person (see UDB), you may need to translate "believes in him." (See: [[rc://en/ta/man/translate/figs-metaphor]])