en_tn/gal/02/21.md

I do not set aside the grace of God

"I do not reject the grace of God" or "I do not consider God's grace to be worthless"

the grace of God

Paul is speaking of God's kindness to us. Christ died for us so that we can be justified.

if righteousness could be gained through the law, then Christ died for nothing

Paul uses this statement to argue that righteousness cannot be gained through the law. If it could be then there was no need for Christ to die to give us righteousness, because we could gain it ourselves by obeying the law. (See: rc://en/ta/man/jit/figs-hypo)

if righteousness could be gained through the law

"if people could become righteous by obeying the law"

then Christ died for nothing

"then Christ would have accomplished nothing by dying"