doing the impossible
(chasing lions, speaking to mountains, walking on water, &c.)

Therefore, the promise comes by faith, so that it may be by grace and may be guaranteed to all Abraham's offspring — not only to those who are of the law but also to those who are of the faith of Abraham. He is the father of us all. [...] He is our father in the sight of God, in whom he believed —

the God who gives life to the dead and
calls things that are not as though they were.

—Romans 4:16-17, NIV