'Truthful' in the Bible

Never take your truthful words from me, For I wait for your ordinances.

A truthful saying is trusted forever, but the liar only for a moment.

A truthful witness saves lives, but the person who lies is deceitful.

to teach you true and reliable advice, so you can give truthful answers to those who sent you?

The Teacher searched to find appropriate expressions, and what is written here is right and truthful.