'Fail' in the Bible

For the Lord your God is a merciful and compassionate God; He will not fail you, nor destroy you, nor forget the covenant with your fathers which He swore to them.

Be strong and courageous, do not be afraid or tremble in dread before them, for it is the Lord your God who goes with you. He will not fail you or abandon you.”

It is the Lord who goes before you; He will be with you. He will not fail you or abandon you. Do not fear or be dismayed.”