'Truthful' in the Bible

Truthful lips endure forever,but a lying tongue, only a moment.

A truthful witness rescues lives,but one who utters lies is deceitful.

They sent their disciples to Him, with the Herodians. “Teacher,” they said, “we know that You are truthful and teach truthfully the way of God. You defer to no one, for You don’t show partiality.

When they came, they said to Him, “Teacher, we know You are truthful and defer to no one, for You don’t show partiality but teach truthfully the way of God. Is it lawful to pay taxes to Caesar or not?