This is the central issue when it comes to examining the claims of Christianity. Here are 2 powerful reasons that support Jesus’s radical claims.
How Do We Know That Jesus Is Who He Claimed To Be? – Jonathan Morrow from Think Christianly on Vimeo.
Here is a link to the Think Christianly podcast with a talk I did on the historical evidence for the resurrection that goes into more detail.
I have a chapter on it here:
Think Christianly with Jonathan Morrow