Why should we trust the gospels?

As part of a new series to prepare for/coincide with UNCOVER happening at All Souls over this year, I did a talk on Sunday evening on the question of the historicity of the gospels. It’s a contentious issue, full of mantraps and perilousness, not least because of the short length of time available to address it. But I had a stab, and aimed to touch on what I sense are the key issues, in the hope that the serious inquirer or thinker will follow whichever (or all) of them is important to them.