'Invalid' in the Bible

if a man makes a vow for Yahweh or swears an oath with a binding pledge on himself, he must not render his word invalid; he must do all that went out from his mouth.

But it is easier [for] heaven and earth to pass away than [for] one stroke of a letter of the law to become invalid.

I do not declare invalid the grace of God, for if righteousness [is] through the law, then Christ died to no purpose.

Brothers, I am speaking according to a human perspective. Nevertheless, [when] the covenant of a man has been ratified, no one declares [it] invalid or adds additional provisions [to it].