'Fail' in the Bible

and I say to you, Make to yourselves friends out of the mammon of unrighteousness, that when ye may fail, they may receive you to the age-during tabernacles.

and I besought for thee, that thy faith may not fail; and thou, when thou didst turn, strengthen thy brethren.'

The love doth never fail; and whether there be prophecies, they shall become useless; whether tongues, they shall cease; whether knowledge, it shall become useless;

and as a mantle Thou shall roll them together, and they shall be changed, and Thou art the same, and Thy years shall not fail.'

And what shall I yet say? for the time will fail me recounting about Gideon, Barak also, and Samson, and Jephthah, David also, and Samuel, and the prophets,