Check the battery voltage with a volt meter.
Thanks Rolex it was the main fuse. Thank you to everyone else for the suggestionsIn front of the fuse block is the starter solenoid, remove the cover and check the 30a fuse, there are 2, one is in use the other a spare.
If the fuse is good bridge the 2 big terminals on the solenoid, this will bypass all safety switches so be in neutral.
This will test your battery and cables and the starter should spin, it will not start but should spin.