BibleGateway.com - Passage Lookup: John 10:7, 9-10
9I am the gate; whoever enters through me will be saved.[a] He will come in and go out, and find pasture. 10The thief comes only to steal and kill and destroy; I have come that they may have life, and have it to the full.
Several points here:
1 - life and to the full. This isn't some ascetic thing. There's joie de vivre implied here.
2 - the gate as a metaphore implies entrance and exit, as does his statement in 9[a]. What do we make of that? Probably nothing, but ...
3 - he sets himself up in comparison against a thief. Who's the thief?
If we move on and don't over-isolate on this passage, we see later Jesus makes a comparison that he is the good shepherd.
I get it when the jews say he's raving mad. Some of these things make my brain hurt.