NET

21 Is the law therefore opposed to the promises of God? Absolutely not! For if a law had been given that was able to give life, then righteousness would certainly have come by the law.

Darby

21 [Is] then the law against the promises of God? Far be the thought. For if a law had been given able^D8556 to quicken, then indeed righteousness were on the principle of law;

Darby Bible Notes

able - Or 'such as was able to quicken,' an emphatic phrase.

KJV

21 [Is] the law then against the promises of God? God forbid: for if there had been a law given which could have given life, verily righteousness should have been by the law.

Strong's

21 Is the law^G3551 then^G3767 against^G2596 the promises^G1860 of God^G2316? God forbid^{G3361 G1096}: for^G1063 if^G1487 there had been^G1325 a law^G3551 given^G1325 which^G3588 could^G1410 have given life^G2227, verily^G3689 righteousness^G1343 should^G302 have been^G2258 by^G1537 the law^G3551.