It's Not Hard To Fast...

...it's impossible.

Romans 4:18 Who against hope believed in hope; that he might be made the father of many nations, according to that which was said to him: So shall thy seed be. 19 And he was not weak in faith; neither did he consider his own body now dead, whereas he was almost an hundred years old, nor the dead womb of Sara. 20 In the promise also of God he staggered not by distrust; but was strengthened in faith, giving glory to God: 21 Most fully knowing, that whatsoever he has promised, he is able also to perform. 22 And therefore it was reputed to him unto justice.

John 15:5 For without Me ye can do nothing.

Philippians 4:13 I can do all things through Christ Who strengtheneth me.