'Reliable' in the Bible

For there is not [anything] reliable in his mouth; their inner part [is] destruction. Their throat is an open grave; [with] their tongue they speak deceit.

Forever I will keep my loyal love for him, and my covenant [will be] reliable for him.

Your testimonies are fully reliable. Holiness is fitting for your house, O Yahweh, {forever}.

The works of his hands [are] faithfulness and justice; all his precepts [are] reliable.