'Trust' in the Bible

In this case, moreover, it is required [as essential and demanded] of stewards that one be found faithful and trustworthy.

but instead, brother goes to law against brother, and that before [judges who are] unbelievers?

Be on guard; stand firm in your faith [in God, respecting His precepts and keeping your doctrine sound]. Act like [mature] men and be courageous; be strong.