'Convict' in the Bible

{The testimony of a single witness may not be used to convict} [with respect to] any crime and for any wrongdoing in any offense that a person committed; on the {evidence} of two witnesses or on the {evidence} of three witnesses {a charge shall be sustained}.

And [when he] comes, he will convict the world concerning sin and concerning righteousness and concerning judgment:

to execute judgment against all, and to convict all the ungodly concerning all their ungodly deeds that they have committed in an ungodly way, and concerning all the harsh things that ungodly sinners have spoken against him.