'Zeal' in the Bible

For I testify about them that they have a certain enthusiasm for God, but not in accordance with [correct and vital] knowledge [about Him and His purposes].

or he who encourages, in the act of encouragement; he who gives, with generosity; he who leads, with diligence; he who shows mercy [in caring for others], with cheerfulness.

never lagging behind in diligence; aglow in the Spirit, enthusiastically serving the Lord;