'Zealous' in the Bible

“Now then arise, O Lord God, [and come] to Your resting place, You and the ark of Your strength and power. Let Your priests, O Lord God, be clothed with salvation and let Your godly ones rejoice in [Your] goodness.

The Lord will go forth like a warrior,He will stir up His zeal like a man of war;He will shout out, yes, He will raise a war cry.He will prevail [mightily] against His enemies.

“So let us know and become personally acquainted with Him; let us press on to know and understand fully the [greatness of the] Lord [to honor, heed, and deeply cherish Him].His appearing is prepared and is as certain as the dawn,And He will come to us [in salvation] like the [heavy] rain,Like the spring rain watering the earth.”

We have sent with them our brother, whom we have often tested and found to be diligent in many things, but who is now even more diligent [than ever] because of his great confidence in you.

I am jealous for you with a godly jealousy because I have promised you to one husband, to present you as a pure virgin to Christ.

And [you have heard how] I surpassed many of my contemporaries among my countrymen in [my advanced study of the laws of] Judaism, as I was extremely loyal to the traditions of my ancestors.

Let us therefore make every effort to enter that rest [of God, to know and experience it for ourselves], so that no one will fall by following the same example of disobedience [as those who died in the wilderness].

Now who is there to hurt you if you become enthusiastic for what is good?