'Valid' in the Bible

“If I testify about Myself, My testimony is not valid.

There is Another who testifies about Me, and I know that the testimony He gives about Me is valid.

So the Pharisees said to Him, “You are testifying about Yourself. Your testimony is not valid.”

“Even if I testify about Myself,” Jesus replied, “My testimony is valid, because I know where I came from and where I’m going. But you don’t know where I come from or where I’m going.

Yet even if I should judge, my judgment would be valid, because it is not I alone who judges, but I and the one who sent me.

Even in your law it is written that the witness of two men is valid.

If I had not come and spoken to them, they would not have sin. But now they do not have a valid excuse for their sin.

Therefore, [inheriting] the promise depends entirely on faith [that is, confident trust in the unseen God], in order that it may be given as an act of grace [His unmerited favor and mercy], so that the promise will be [legally] guaranteed to all the descendants [of Abraham]—not only for those [Jewish believers] who keep the Law, but also for those [Gentile believers] who share the faith of Abraham, who is the [spiritual] father of us all—

Therefore, as long as the promise of entering his rest remains valid, let us be afraid! Otherwise, some of you will fail to reach it,

For a will is valid only when people die, since it is never in force while the one who made it is living.