'Proved' in the Bible

For if the word spoken through angels proved unalterable, and every transgression and disobedience received a just penalty,

how will we escape [the penalty] if we ignore such a great salvation [the gospel, the new covenant]? For it was spoken at first by the Lord, and it was confirmed to us and proved authentic by those who personally heard [Him speak],

When your fathers tempted me, proved me, and saw my works forty years.