'Diligence' in the Bible

But for this very reason also, using therewith all diligence, in your faith have also virtue, in virtue knowledge,

Wherefore the rather, brethren, use diligence to make your calling and election sure, for doing these things ye will never fall;

but I will use diligence, that after my departure ye should have also, at any time, in your power to call to mind these things.