'Never Fail' in the Bible

"Lift up your eyes, you heavens and look to the earth beneath; and see who created these. Its inhabitants will die just like this; but my salvation will be forever, and my deliverance will never fail.

And the LORD will guide you continually, and satisfy your soul in parched places, and they will strengthen your bones; and you'll be like a watered garden, like a spring of water, whose waters never fail.

Lining each side of the river banks, all sorts of species of fruit trees will be growing. Their leaves will never wither and their fruit will never fail. They will bear fruit every month, because the water that nourishes them will be flowing from the sanctuary. Their fruit will be for food and their leaves will contain substances that promote healing."

The righteous LORD who lives within her will do no wrong; he will bring justice to light morning by morning. He never fails, but the unjust are shameless.

Love never fails. Now if there are prophecies, they will be done away with. If there are languages, they will cease. If there is knowledge, it will be done away with.

So then, my brothers, be all the more eager to make your calling and election certain, for if you keep on doing this you will never fail.