'Void' in the Bible

I do not make void the grace of God, for if righteousness be through law -- then Christ died in vain.

Brethren, as a man I say it, even of man a confirmed covenant no one doth make void or doth add to,

and this I say, A covenant confirmed before by God to Christ, the law, that came four hundred and thirty years after, doth not set aside, to make void the promise,