'Reliable' in the Bible

So Achish summoned David and told him, “As the Lord lives, you are an honorable man. I think it is good to have you working with me in the camp, because I have found no fault in you from the day you came to me until today. But the leaders don’t think you are reliable.

Achish answered David, “I’m convinced that you are as reliable as the Angel of God. But the Philistine commanders have said, ‘He must not go into battle with us.’

You came down on Mount Sinai,and spoke to them from heaven.You gave them impartial ordinances, reliable instructions,and good statutes and commands.

For there is nothing reliable in what they say;destruction is within them;their throat is an open grave;they flatter with their tongues.

The fear of the Lord is pure,enduring forever;the ordinances of the Lord are reliableand altogether righteous.

Lord, Your testimonies are completely reliable;holiness is the beauty of Your housefor all the days to come.

in order to teach you true and reliable words,so that you may give a dependable reportto those who sent you?

Why has my pain become unending,my wound incurable,refusing to be healed?You truly have become like a mirage to me—water that is not reliable.

Some in the mob were shouting one thing and some another. Since he was not able to get reliable information because of the uproar, he ordered him to be taken into the barracks.